ࡱ                >  	               -          /          ,    [	  R             -   bjbj                   fF  pa!\pa!\                                                                             N      N      N      N      N  $               r      r      r  P     4     l   r          b  (                                                                                  $       x!  f   %  Q                   N                                                    %              N      N                      T  v                           N            N            A                                                                                                                                                                                                   J2g              d                 -       0               !      +  F   "                                                                                    !     !  $   N        d     "                    ,                                                       %      %                                      q  X                                                                                                                                                                       "                                                                                                                      N    :     	                                                                                                                                                                                                                                                                                                                                                                                                                                       I T 0;m(uW0_0Yexvz000000o֊eƖS?zWF{   ^yHY]*Yΐ1 0^yHY]!kΐ2 0^yHY]	Nΐ3     1        f[y    ( t a r o @ x x x x . a c . j p )  2     %%%f[y    ( j i r o @ x x x x x x . a c . j p )  3     'Yf[b  xvzy%%\;e  ( s a b u r o @ x x x x x . a c . j p )    E x a m p l e   p a p e r   f o r   t h e   I T   S y m p o s i u m   T a r o   K A N A G A W A 1 ) ,     J i r o   K A N A G A W A 2 ) ,     S a b u r o   K A N A G A W A 3 )    A b s t r a c t    The present file has been made as a print sample of the camera-ready manuscripts for the paper of the IT Symposium. Its text describes instructions to prepare the manuscripts; layout; the font styles and sizes; and others. If you replace the text or the figures of the present file by your own ones, using CUT & PASTE procedures, you can easily make your own manuscripts.This English ABSTRACT has narrower width than the main text by 10mm from the left and the right margins of the main text, respectively. Font  s i z e   u s e d   h e r e   i s   1 0 p t . t h e   l e n g t h   m a y   b e   l e s s   t h a n   1 5 0   w o r d s .     K e y   W o r d s :     C o m p u t e r ,   E x a m p l e ,   S e n t e n c e ,   W o r d s     1 .   WF{n0Kb_M0000000000SO	  0000000o0d0n0Rg0ibU00~0Y00 A	0000RLvW@b^\'ke0000'keWT000000000000	*j NkD} B	,geR*jNkD} 	 00000Rn000000h00000  00000Rn0]Sn00000o0,gen0]Sn00000000]00^00  1 0 m m   Z0d0'YM0O0h0c0f0NU0D00Y0j00a0  A 4   (u}n0E^k0[W0f0]S]00^00  3 0 m m   Z0d0n000000h00~0Y00  00000o0  A 4   (u}n0
Nk0}  2 0 m m   n000000S0000000W0~0Y00NN!kn0k00000Rn0ib }0fD0f0NU0D00 }  1 5 m m   n00000	  00000fgSO  1 6 p t 0000 }  1 0 m m   n00000	  0WTfgSO  1 2 p t 0000 }  5 m m   n00000	  0W@b^\fgSO  1 0 p t 0000 }  1 0 m m   n00000	  0'ke0000T i m e s   N e w   R o m a n   SO  1 2 p t 0000 }  5 m m   n00000	  0'keWT0000SO  1 0 p t 0000 }  1 0 m m   n00000	  00000000eT i m e s   N e w   R o m a n   SO  1 0 p t 0000            1 5 0   NQ Ln00000	  000000eT i m e s   N e w   R o m a n   SO  1 0 p t 00005   NQ Ln00000	  0Wh0@b^\h0o0NM0peW[g0[_e0Q0
Nn00F0k0&Ny0f0NU0D00'   A b s t r a c t   ' '   K e y   W o r d s   '   h0D0F0eW[o0  T i m e s   N e w   R o m a n   SOk0W0~0Y00 	 0,geRn000000h00000  0,geh000000n0k0iS_j000000zzQ0@b[n0{@b00fM0Y0f0NU0D00  0,geo0NkD}g0]Sn00000o0  2 0 m m   Z0d0kh0kh0n0n00000o0  8 ^1 0 m m   h0W0~0Y0aN0000o0  2 0 m m   g0Y00 ,gek0o0fgSO  9 p t e1 0 p t 	00000(uD0f0NU0D00  2 .  0 N,000   0,{  2   000NMn08^n0000o0
Nn000000  2 0   m m   h0W0~0Y00]00NYo00000000n0,geRh0TX000000h00000g0,ge0\ObW0f0NU0D00  3 .  0QW0QW0L0  1   LN
Nk0wO0j00h0M0o0S0n0On00F0k000000W0f0b0ԏY0	  3 .   1  0QW0n0000  0QW0n0000o0  2   k~0g0h0W0~0Y00,{  1   000n0QW0z	o00000SOh0W02 .   j0i0n0peW[k0}Q0f0fM0~0Y00~0_0QW0n0
NNk000000zzQ0~0Y00S0n00000n00000K00RK000F0k0
N0  1   L 0N
NN0  1   Lz^zzQ0f0NU0D00  3 .   2  0,{2 000n0QW0  0,{  2   0                       (  0  6  >  @  D  N  P  \  ^  j  l  r  t  x  |  ~                              	  	   	  .	  4	  F	  x	  |	  	  	  	  	  	  	  	              h# CJ H*	h6 o(	hEd o(hy+ CJ o(h6 CJ o(h# CJ o(h# CJ H*h# CJ EH  
h# CJ  h# CJ  OJ PJ  h4 CJ  OJ PJ o(h6 CJ  OJ PJ o(hFs' CJ  OJ PJ o(hM CJ  OJ PJ o(h#  	h# o( 2         @  B  D  p  r      0	  2	  4	  z	  |	  	  	  	   
  t  ~                                                                                                                                                                                                                                                                                    77d   ]7^7` 	  $d   x a$   $ d   ^a$    d      d       $d   a$   $ d   a$  	   
  U
  b
  f
  r
              >  @              2  >  ^  f                  0  2  6  B  N  P  b  l  t  v  z                                  
      (  H  J  T  \  ^  b  l  x  z      κغغغغغغغغغغغغغغغغغغغغغغغغغغغغغغ   h# CJ PJ o(h# CJ OJ PJ o(h# CJ OJ PJ  h# CJ PJ  h#  h4 CJ o(h6 CJ o(
h# CJ  h# 5CJ  I~                @          2  P  v            ^  z                                                                                                                                                                                                                                                                                                    nd  ^n   d     d      77d   ]7^7`   d   ]^`                         $  *  ,  >  @  T  t  v                         ,  N  Z  \                 $  &  0  H  T  Z  \  j  r  x                        R  V  Z  l  r                      $  *                h# CJ OJ PJ o(h# CJ OJ PJ  h# CJ PJ  h# CJ PJ o( V    ,  @      \      \          T  V              t$  v$  $                                                                                                                                                                                                                                                                                                     Td  ^T`    d  `    d     Xd  ^`X   nd  ^n                  $  "$  ,$  L$  R$  r$  v$  z$  $  $  $  $  $  $  $  $  $  $  $  %  %  %  %  $%  .%  0%  @%  B%  h%  j%  l%  n%  ~%  %  ٶٚyi jlx5
h# CJ EHPJ U 0jlx5
h# CJ OJ PJ QJ UVmH nH u h# CJ PJ  j    h# CJ PJ Ujmx5
h# CJ EHPJ U (jmx5
h# CJ PJ UVmH nH u j    h# CJ PJ UUh# CJ PJ  h# CJ PJ o(h# CJ OJ PJ  h# CJ OJ PJ o( )00n0QW0{	00000SOg03 .   2   n00F0k0W0~0Y00QW0n0
N`0Q0k0  1   Lz^n000000zzQ0f0NU0D00  4 .  0pe_J00s0pef[S   0pe_0pef[So0!kn0_  ( 1 . 1 ) ( 1 . 2 )   n00F0k0fM0~0Y00    0 0 0 0   E M B E D   E q u a t i o n . 2         0 0 0 0 0 0 0 0 0           0( 1 . 1 )       E M B E D   E q u a t i o n . 2        ( 1 . 2 )     0f_o0T@b^\f[On0chYY00f_k0_c0f0fD0f0NU0D00  0pe_n0_n0_juSo0b'_fM0g0Spk0W0~0Y00  5 .  0VhJ00s0Qw  5 .   1  0VhJ00s0Qwn0MOn  0VhJ00s0Qwo0]0000 gRk0_(uY00ezh0TX0000k0nO0S0h00SGRh0W0~0Y00S?z+g>\k0~0h00_00W0j0D0g0NU0D00VhJ00s0Qwn0*jE^o00Nkv0a0bM00B00D0o0S0n00000n0  h  1   0  V  1   n00F0k00 Nkn0E^D0c0q0D00n0D0Z00K0h0W0~0Y00VhJ00s0Qwn0E^0 NkE^NNk0W0f0VhJ00s0Qwn0*jk0,ge00000MnY00S0h0o0Q0f0NU0D00VhJ00s0Qwh0ez,gSOh0n0k0o0  1   Lz^n0zz}v0zzQ0f0:S%R0fxk0W0~0Y00      h  1  0hn0000000o0hn0
Nk0nO00S0n00F0k0wD0h0M0o000000W0f0b0ԏY00                                           0 0 0 0 0 0 0V  0 0 0V  1  0Vn0000000o0Vn0Nk0nO0  5 .   2  0Vh-Nn0eW[J00s0000000  0Vh-Nn0eW[0pe_n0'YM0U0L0\U0O0j00NN0j0D00F0k0laW0f0NU0D00yrk0000000n0'YM0U09 p t e  1 0 p t 	00\U0O0j00j0D00F0k0W0f0NU0D00  0wD0000000o0h  1   n00F0k000000W0f0b0ԏY00e000000n04XTo0QW00  T a b l e   1   0  F i g .   2   h0W0f0NU0D00  6 .  0Se.sn0_(uh0000   0Se.so0Qsk0juS0/c0]0n0_(u{@bg0
NNM0Sb'_NM0peW[g0c:yW0~0Y00Se.so0]0n0hQf00S?zn0+g>\k0~0h00f0000h0W0f0:yW0lk0o0W0j0D0g0NU0D00  Se.seQO	 ( 1 )   T o m p s o n ,   S .   P .   a n d   B o n d o ,   J .   N .   ,   T h o e r y   o f   C o m p u t i n g ,   3 r d   e d n . ,   M c G r a w - H i l l ,   A u c k l a n d ,   1 9 9 9 .  ( 2 )   ^yHY]*YΐS(g!kΐe - l e a r n i n g 0000k0J0Q00f[Rg㉐gle,gYe]f[f[O֊eƖ1 1   P a p e r   N o . 2 0 0 1 0 0 7 7 p p . 1 2 3 - 1 3 0 2 0 0 1 .  ( 3 )   L e e ,   B .   ,   S o f t w a r e   A r c h i t e c t u r e   f o r   e - l e a r n i n g   s y s t e m ,       I n f o m a t i o n   T e c h n o l g y   C o n f e r e n c e ,   A C C M ,   p p .   1 1 - 1 6   2 0 0 2 .                                                                                                                                    $  $  $  $  $  <%  >%  @%  z%  |%  ~%  %  %  %   &  &  $&  '  '  '  '  '  '  <(  >(  @(  B(                                                                                                                                                                                                                                                                                                                                	  d  $If      d  x ^`   d   %  %  %  %  %  %   &  &  
&  "&  $&  &  &  &  &  &  &  &  &  '  '  '  '  '  '  '  '  :(  (  (  (  (  (  (  (  (  (  (  (  ^)  d)  j)  t)  )  )  )  )  )  *  *  *  ,*  0*  4*  L*  N*  P*  *  *  *  
+  V+  |+  +  ︭   h4 h4 6CJ PJ h4 h4 CJ PJ  h4 h4 CJ OJ PJ QJ o(	h# o(h#  hk*$ CJ PJ o(h# CJ OJ PJ o(h# CJ OJ PJ  h# CJ PJ o(h# CJ PJ ?B(  D(  F(  H(  J(  L(  N(              a                                                                                                                                                       kd    $$If   c             \ hC@=:                                                                    0                                                                                4 
c a	  d  $If    N(  P(  R(  T(  V(  X(  l            c            c            c            c                                                                                                                         	  d  $If      kd   $$If   c             \ hC@=:                                                                    0                                                                                4 
c a X(  Z(  \(  ^(  `(  b(  l            c            c            c            c                                                                                                                         	  d  $If      kd$  $$If   c             \ hC@=:                                                                    0                                                                                4 
c a b(  d(  f(  h(  j(  l(  l            c            c            c            c                                                                                                                         	  d  $If      kd  $$If   c             \ hC@=:                                                                    0                                                                                4 
c a l(  n(  p(  r(  t(  v(  l            c            c            c            c                                                                                                                         	  d  $If      kdD  $$If   c             \ hC@=:                                                                    0                                                                                4 
c a v(  x(  z(  |(  ~(  (  l            c            c            c            c                                                                                                                         	  d  $If      kd  $$If   c             \ hC@=:                                                                    0                                                                                4 
c a (  (  (  (  (  (  (  l            g            g            6            6            6               0  G &#$$d %d &d 'd +D/ N    O    P    Q       d     kdd  $$If   c             \ hC@=:                                                                    0                                                                                4 
c a (  (  (  (  (  (  )  .*  0*  N*  P*  *  *  
+  +  ,  p-  t-  v-                                                                                                                                                                                                                                                d  WDc^`gd4  
  $d  a$gd4    d     d  x  0  G &#$$d %d &d 'd +D/ N    O    P    Q     +  6,  <,  >,  @,  b,  d,  x,  ,  ,  ,  >-  `-  b-  d-  l-  n-  p-  r-  v-  x-  |-  ~-  -  -  -  -  Ӽ󴰴                                                                                                                                                                                                                          hU  j    hU Uh4 h[	 CJ PJ  h4 h4 6CJ PJ h4 h4 CJ PJ  h4 h[	 CJ PJ o(h[	 CJ PJ o(h4 h4 CJ PJ o( v-  z-  |-  -  -  -  -  -  -                                                                                                                                                                                                                                                                                                                                                                                                                                               d  WDc^`gd4     / 	0 P . A!n"n#n$n%  S3 	0 P . A!n"n#n$n%  SP                                                                                                                                                                                                                                                                                                                                                                                                                            $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a $$If   !v h#v #v:V c 0                                   5 54    4 
c a                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    	   
                                                                      !   "   #   %   &   '   (   )   *   +   9   .   2   1   3   4   5   8   6   7   :   ;   <   >   ?   @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   R o o t   E n t r y                                                 	           F            02g0          D a t a                                                         
                                     $         W o r d D o c u m e n t                                                                                     fF      O b j e c t P o o l                                                                        1g02g            _ 8 9 7 0 6 0 9 7 3                                                                F    1g1g             O l e                                                         
                                                 P I C                                                         
                                              L        M E T A                                                                                                                       	   
                                                    !   "   #   $   %   &   '   (   *   -   .   /   1   2   3   4   5   6   7   9   :   ;   <   =   ?                                                                 L            E    l                                                                                                   E   	  F           	               .    1                &       @       &  MathType   	            "    -                        Times New Roman )    - 	   2
r
   1                 Times New Roman -    -     	   2
8=   2 p 	   2
8    3 p              Times New Roman )    -     	   2
   x  
   2
`   dx                Symbol     -     	   2
8    - {              Symbol     -     	   2
?      
   & 
                  System s   -                                                       
              F   Microsoft  2.0    DS Equation    Equation.2 9q                                           C o m p O b j                                                      	                                          b        O b j I n f o                                                  
                                                 E q u a t i o n   N a t i v e                                                                             T       _ 8 9 7 0 6 0 9 7 2                                                              F    1g1g                                                                               8   tR R     اR 
   1 x   -2 3  
dx                                                                                                            L            E  ,  l                                                                                                   E   	  O           	               .    1                &            O l e                                                         
                                                P I C                                                         
                                              L        M E T A                                                                                                      C o m p O b j                                                                                             )   b          &  MathType   	            "    -                                Times New Roman     - 	   2
n   1  	   2
`   3  	   2
`   2  	   2
n   3  	   2
   2                 Times New Roman     -     	   2
8K   2 p 	   2
8    3 p 	   2
   2 p 	   2

   3 p              Times New Roman     -     	   2
(   x  	   2
`o   x                Symbol     -     	   2
8    - { 	   2

   - {              Symbol     -     	   2
?                   Symbol     -     	   2
`d   =  	   2
`   =  	   2
`   -  	   2
`=   =                Times New Roman 5   -        2
`   [log k   	   2
`i
   ]     2
`   log k      2
`   log k      2
`w   log k                lr     -     
   2
`/   b@  
   2
`	   b@  
   & 
                  System s   -                                     
              F   Microsoft  2.0    DS Equation    Equation.2 9q                                                                                                             ڬ   tR R     R 
   1 x   -2 3  
=[log	e@b
x	e@b
] -2 3  
=log3-log2=log  3 2    /                                                         O b j I n f o                                                                                         +          E q u a t i o n   N a t i v e                                                                          ,          1 T a b l e                                                                                                 =   "       S u m m a r y I n f o r m a t i o n                           (                                           0         EqUHO.(1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Oh +'0                                                 	        $  
   D     P     \     h     t     |                    (   _ސHȑwITV|WEe쐬                  fujii                   it_template.dot       fujii         2         Microsoft Office Word   @           @    `v@    z*@    8g              
                                                                      D o c u m e n t S u m m a r y I n f o r m a t i o n           8                                     8   x       C o m p O b j                                                                                       >   n                                                                                                                                                                                                                                                                     ՜. +,0   H        h      p      |                                                                                                                               !   _ސHȑwW^e쐬 !   _ސHȑwW^e쐬         	   ^Cg             Title                   
  	           F   Microsoft Word 97-2003  
   MSWordDoc    Word.Document.8 9q                                 s                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           2                     0  @  P  `  p                   2  (         0  @  P  `  p                      0  @  P  `  p                      0  @  P  `  p                      0  @  P  `  p                      0  @  P  `  p                      0  @  P  `  p      8  X        V  ~                          0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @              0  @     PJ _HmH	nHsH	tH    N  ` N          jn     $dh  1$ 9D H$ a$ CJ _HmH	nHsH	tH                  $ A  $          k=0000    F i@ F          jnn0h    :V   4   4 
l a      $ k  $           000j0W0        2    2  u    0000     8!G$   . /.   u   	 0000  ( eW[)    CJ 2    2  u    0000     8!G$   . /!.   u   	 0000  ( eW[)    CJ PK     !         [Content_Types].xmlN0EH-J@%ǎǢ|ș$زULTB l,3;rØJB+$G]7O٭V<a(7IR{pgL=r85v&uQ뉑8CX=$␴?6NJCFB.ʹ'.+YT^e55 ð_g -;Ylݎ|6^N`?[   PK     ! ֧   6     _rels/.relsj0}Q%v/C/} (h"O
= C?hv=Ʌ%[xp{۵_Pѣ<1H0ORBdJE4b$q_6LR7`0̞O,En7Lib/Seе   PK     ! ky         theme/theme/themeManager.xmlM
 @}w7c(Ebˮ CAǠҟ7՛KY,e.|,H,lxɴIsQ}#Ր ֵ+!,^$j=GW)E+&
8   PK     ! <       theme/theme/theme1.xmlY]7}/?kK`llb'%Z[(%})J҇m f۔6^icɖ͒B(YϽ:\w#x$ܛ~:\x(q]`^{юqjb`slcm	LqoDRV]'F6vN?99~vr{a9A,r`Dt+%/x@іsCC-?x|dFTl/5g2'<߫s
@&WzܟVr}fgX~ֻղW78}1
6~ Q4
+g(6R_	VxJ|jȫKN1aVkÒ> $"AbG,fxFP :33J_7	f% 1$y8|hWW|gOOOrr||ԑan~ד^<Ҏ:>/@Z?O??xhÇ$ܹ,~zݢO9'B}u(:،4c\ad XpYΥy8ɓСm F~{h*BlмNQ,X87veu	1GF	l" bɐմ2%ea#6bw0j[uHQ7nKh.Pds9DU_A",qbʜsnz5ߗ5{tD+1eA; qc?Pȹ΄"!(ޚ[~$SҪ@/ĒK;X	Jj@H]d&+ ϿydY*iQk2.K.1l͕w{~~hoyTLm=O
WGvi܇AiWq~60&H8	B4}ٕN<s=Όq8aohrYޒX|n1DW^{vn&3IT-$A$uCAP+{#,~@-
8p\0;*DX)M2*o2ۂiT #tSrݺ<NiVn&	x8N9z*=
5֊Fo,Κk[JAc֪>Znk4ȋDn(,ᢋx\N8q(Z\~+Q\dm#I7'<zڵ>
`iA8>r<zYpL8<)x٪S&sDUC8eE<hWٚ!ZHF?VMru_m$#g"]Ōm`-gkeAJ6ZvNȻ<랢!hV$McWP;MTtGX3u~[Z,ϕ*ꝇJ9\^8$Du&Ie]mrTPjWJ߮ھ_-r۩܇"¨[(..j|K|vnĢ"SoVzR޼k! :j~
j_F:n-wo4]Pv5jFVW+IfU*mn+O#W    PK     ! ѐ     '   theme/theme/_rels/themeManager.xml.relsM
0wooӺ&݈Э56?$Q,.aic21h:qm@RN;d`o7gK(M&$R(.1r'JЊT8V"AȻHu}|$b{ P8g/]QAsم(#L[    PK-      !                       [Content_Types].xmlPK-      ! ֧   6               0  _rels/.relsPK-      ! ky                     theme/theme/themeManager.xmlPK-      ! <                   theme/theme/theme1.xmlPK-      ! ѐ     '             	  theme/theme/_rels/themeManager.xml.relsPK      ]  
    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<a:clrMap xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main" bg1="lt1" tx1="dk1" bg2="lt2" tx2="dk2" accent1="accent1" accent2="accent2" accent3="accent3" accent4="accent4" accent5="accent5" accent6="accent6" hlink="hlink" folHlink="folHlink"/>    s      F     1F                 	                                                   	      %  +  -                 !      ~    $  B(  N(  X(  b(  l(  v(  (  (  v-  -                                       "   l              ::  `                                C     7"  "   7"  "  @             H               0    (    	                    
                        0    (    	                    
          B    
        S              	   ?              &        &                                      8      *urn:schemas-microsoft-com:office:smarttagsCity 9      *urn:schemas-microsoft-com:office:smarttagsplace                              X   ]               	  	  	  
  H
  I
  M
  N
                      +  ,  z                                                                                     !  G  J  8  9  C  D      G  J       3  s  s  3  3  3  3       u  y                                                                                                  [	 k*$ Fs' j* y+ <iX Cn` Ed dr 6 b M !< 	s  4 # U u                   A u t o M a r g i n A d j u s t m e n t 2      A u t o M a r g i n A d j u s t m e n t 3      D o c L a y      V a l i d C P L L P P      V i e w G r i d          Y E S  0  0 @                                L                                @                      $        U n k n o w n                                   G  * Ax 	             T i m e s   N e w   R o m a n   5                       S y m b o l   3.  * Cx 	             A r i a l   G	 j             -3  fg  M S   M i n c h o   K=	 j             -3  0000  M S   G o t h i c   7                       C e n t u r y   A	                    M i n c h o   -3  fg  A   $ B              C a m b r i a   M a t h        S  h    Z;gt[Gb       
             
             !                                                                                                                                                                                                                                 egikmoqsuwy                                                              nnx x                                                                                  G    	3Q                           HP    ?    Fs'    2                     !                             x   x                                      ^yHY]]y'Yf[I T 000000S?z\ObO       f u j i i  f u j i i                                             i	 Z'`I Z'                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  