1. Introducción Según afirma Belly, uno de los aspectos que marcan

!
" !
#
$
"
%
&
'
)
"
(
"
)
*+,
--.
)
.
!
.
(
0
.
,
%
/
1
(
*
0
&
*2,
0
(
%
%
0
&
&
!"
*3,
/
%
"
%
)
%
&4* , #
5*6,
$
$
&
!"
#
#
#
$
#
#
*7,
*
!#
,
&
$
(
/
8
!#
%
' %
'
)
)
%
)
*9,
8
:
$
&
"
#
)
#
%
&
;
0$
$
(
'
)
%
%
*
+
=
$
-...
!)
"
%
*<,
!
)
"
(
&
,
,
%
*>,
%
)
0
80
4
% 5
=
(
%
%
)
=
0 (/
"
.
)
)
)
8
?
#
)
)
)
)
4
5*@,
&
.
*+A,
0
!
*++,
)
8
.
$
8
&
$
B
/
0
"1
&4* , #
5*+3, =
*+2,
$
"
(
,
/
%
0
#
!"
*+6,
#
#
)
)
"
&
(
%
!
%
"
%
!
"
!
%
"
*+7,
/
4
"
.
5*+9,
$
8
&
,
/
/#
%
%
)
*+<,
$
)
%
(
"
%
%
"
$
"
"
$
=
(
)
%
C %
D
(
E
8
/
8
)
*$
$
(
,
(
F
&
.
?
(
%
?
(
F
=
#
G$(
(
" (
&41
4
%
(
(
(
5*+@,
5
%
8
)
!4
5 4
(
5!
&
0
(
* ,
)
8
$
=
'
" (
%
)
40
5
$
%
&
1(
2! "
3
*2+,
=
&
F
=
H
4
*22,
4
"
8
H
H
5 4
(
5
"
"
5
4
(
5
B
&
!"
4
%
4 *23,
F
$
8
$
F
I
/"
*26, F
J
"
#
&
%
(
(
(
,
)
#
-
5
*27,
0
8
(
(
*
K
&
)
6
6
*
6 %
6
*29,
8
8
(
=
$
F
!"
#
#
)
#
*2<,
(
"
(
=
!"
'%
%
#
#
#
'
*2>,
= ) )
F
)
"
(
.%
-
#
*2@,
C %
(
(
%
(
=
0
=
*3A, 4
0
L
%
M
$
"
5*3+,
=
=
0
-
!= 0
!
&
-
3
$
-
-
-
%
/"
(
%
F
&
!
F
(
(
.
N
=
= 0
!
0
(
! = 0
$
)
*33,
(
8
(
F
&
(
.%
.
0
"
(
F
%
(
"
(
(
$
0
#
*37,
/
$
8
F
(
"
.
#
8 #
*39,
=
F
(
8
$
8
8
"
"
)
F
$
$
$
$
9
5
$
#
,
#
! ":$
#
6 *3<,
#
0
0
F
!"
! "(
1
2
)
G$(
$
4
(
5*3@,
*3>,
%
"
1
"
8
8
$
(
%
;
%
*6A,
)
8
8
8
+@>6
.
0
)
4;
/
5*6+,
%
=
"
0
B
"
;
%
)
<=>?
@
#
&
#
,
#
#
E
) )
*62,
4;
5
)
$
$
=
+@>9
.
"
.
*
"
+@@6
.
.
* . ,
9
*63,
A
$
*
*
(
9
,'9 ,0 A
B
*
!9' C AD "
%
)
%
+
)# )77BBB
!
"
%
#
,
A
9
A
$
*66,
*
*
%
*
.
%
8
F
"
"
)
* / ,
"
8
* = .,
.
)
%
0
"
( &
.
+
&
1
&
"
1B
=
)
(
"
2 ;/ = /
$
3
&
"
$
1B./ = #0 B 1 /0/=: .01&
%
8
";
.
6 /; N=/ = #/ N.G B .=/=&
$
%
%
)
8
"
&; O/ = #/ N.G B .=/= =
E =./NE ; O/ = # N.G B .E/B.1
7 ; O/ = #/ E.E #/0.1N
(
$
B0./ ; O/ = #
&
1
.
/EBO0 #/&
.
N.G B .=/=
(
N1B / =
1
;
/EBO0 #/
.
$
F
;
N1B / =
/ %
/; N=/ =
P
/ E.0 / *67,
P
0
=
.
0
B
9A*
)
< '& 80'0 '$5AEA0'0 9)
9
F CD( 5G8 0 8DE 0'0 9H C)
I CD( 5G8 0 ,J 89')
A
*
*
+
*
+
%
9A*
*
+
9
? CD( 5A8 9D@A$A'( 9)
*
A
CD J+
CD
*
0A'JAD 0 ('9$D+*8A
*JD, '9
N
.
)
=
2AA2
9
9A*
A
.
B
*
;
J
K
K
B
*
*69,
=
) !
2AA2!
)
)
8Q
(
%
Q
)
$
"
"
;
#
*
+
*6<,
R
8
%
F
(
%
.NH1B /!
B
8
!
0
& B
%
$
;
%
%
%
!
;
$
8
#
B
!# G
%
!
!
*
,!
$
8
N
H
&
NE &
#
8
%
/"
%
F
F
N
F$
*6>,
&
# 1
H
H
NE &
$
!
!
%
"
%
%
B
/
;
0
.
8
*0 B / G ,
8
%
/
"
G
#
$
(
%&
F
0
'
(
8
%
%
8
8
"
(
1
,
$
K 1E
)
F
(
%
) K S
%*
$
1
(
= / H1 *=
E)
/
(
,
%
$
)
8
$
%
= / H1
$
(
(
F
8
I
F
%
"
=
G
%
H $
"
"
)
('
(
.
(
8
* . , 0
H
;
"H
' B
%
"
R %
H
;
R
$'
" ( %
(
(
=
%
(
=
/
(
H
(
1
"
$
%
"
"
8
"
$
8
)
.
$
(
"
$
F
8
0
)
"
S
"
$
=
"
)
"
$
$
%
"
8
"
%
"
$
"
"
%
0
"
8
0
%
&
8
"
--.
"
$
.
(
$
$
"
%
)*
/##
+ ,E/ ; B TN R % B
##?
&4N
1B/#
/
&#
2AA+ U) &
JJ
23
2AA2M
0/## R/ 0/N #/
E
0/ EB1 0/ EB1 0
=
5 2AAA PPP
FJ
W
(
J
N/
L
J
%F
$ #
4;
= #0/ E.##1 I B 1 / R
!
!
B ?
" M %F
(
)
B./#
&
0
8
R1 10./#
= #/ 0B X/; .#/B
J
2AA+
&
0
01N
22
+@><
%
#
)
*
, #
0
+@><
=
01 I
0
)
;
;/B0O/ H BB/N=1 0
=
G
2AA+
0
4#
5B
$&0.NE # 2AA2
U) &JJPPP
J
J
L0
&2A
2AA3M
#1 /=/ GTXZ
XT
.
2AA2
+@
J)
0
J
* . ,
E
Y
@
@Y Y32J# Y
YY Y
32L
Y Y Y.
#
+@@>
1NB /# R
+@<@
1B/#
2AAA
*
& $
BB/N1 H
2AA+
1BE ;/ ? ;/
+@9A
01EE
0
, #
*
, =
;
ER %
4#
0
B
1
"
8
BG.0.1 = .NH1B /0.[N N.G B .E/B.1
U) &JJPPP
J FJ
! ) V L0
LE
2AA2M#
2AA3 U) &
JJPPP
G B/ H BNTN= X =
2AA2
K .#
.
#
' /
*3\ ,
5
; "
+@@7!@9
L
BG.0.1 = .NH1B /0.[N N.G B .E/B.1 N
U) &JJPPP
J J
) V L0
&2+
+@
2AA3
X0
(
+@><
BG.0.1 = .NH1B /0.[N N.G B .E/B.1 = #/
+@@7
1E #1 NBOZ
/
E.
2AA3M
.
&3A
.
L " M
2AA2M
/
.
&
J
R
" M
&
2+ 2<
J
;
2AA2JV L0
2
&
0
L
&+6
" M
&E
2AA3M
=
0
+@@2
*+, 0
##?
4N
B ?N/;/ 1B/#
/ #
N/ 2AA+ U) &JJ
L0
&23
2AA2M
*2, #1 /=/ GTXZ
XT
5 2AAA
(
J
N/
FJ
W
J
2AA+
*3, 0/ EB1 0/ EB1 0
0
!
" M
(
72
4;
&
0
8
+@><
@9
>+
*7, 0/ EB1 0/ EB1 0
>A!>+
*9, #1 /=/ GTXZ
+6>
XT
*<, 0/## R/ 0/N #/
3<
*>, . "
3<!3>
*@, . "
3@
E
$ #
*+A, = #/ 0B X/; .#/B
*++, =
&
#
B./#
I
-.-
0.G.E/
)
(
--.
'
"
LE
2AA2M#
2AA3 ) &
JJ
PPP
+@
-'
.
*+3, 1BE ;/ ? ;/
+@9A 93
ER %
*+6, 1BE ;/ ? ;/
ER %
*+7, 1NB /# /BEON X R
337
)
&
J
J
*+2, 0 4#
" M
$&0.NE # 2AA2
U) &JJPPP
J
J
L0
&2AQ .! 2AA3M
*+9, 4
*
L
!
#
+@@>
*6, . "
J
%F
PPP
5B
J)
J
Y
L
2AA2JL0
&+6
0
E
@Y Y32J# Y
B
" M
&E
2AA3M
@
YY Y
1
/
Y Y Y.
(
*3\
99
*
, #
(
/
,
$
5
LE
2AA2M#
.
2AA3 ) &
JJ
PPP
J
4#
5B
$&0.NE # 2AA2
U) &JJPPP
J
J
J) J
L0
&2A
2AA3M
*+<, #1 /=/ GTXZ
*+>, 0
XT
#1 /=/ GTXZ
*+@, 1E #1 NBOZ
2AA+ 23
*2A, . "
&
J
0
Y
XT
X0
01EE
*27, 1B/#
2AAA
Y Y Y.
.
/
0
2AA
1B/#
BB/N1 H
2AA+ 2+@
J
+@@>
J
"
+2@!+32
+@><
*
)
L0
&23
5
, =
#
;
0
*
, #
=
63!66
BB/N1 H
*3A, 1E #1 NBOZ
*
,
X0
BB/N1 H
22+
+@@
*3+, = #0/ E.##1 I B 1 / R
1B/#
J
HB/;1 1 HB/N01 = . "
*2<, = #0/ E.##1 I B 1 / R
>3
*2>, . "
$
4#
8
*29, K .#
*32,
YY Y
72
X0
B. # B1E/
0
*2@,
" M
&E
2AA3M
@
32L
+6<
*22, 0 HB/;1 1 HB/N01 =
&4
B(
L " M %F = H&E
) &
JJPPP
FJ J
J
2AA3M
*26, 0
@Y Y32J# Y
&+6
26
*2+, 1E #1 NBOZ
*23,
L
2AA2JL0
E
+>>
*
,
+<!+>
*33, = #0/ E.##1 I B 1 / R
+>>
*36, = #0/ E.##1 I B 1 / R
32
*37, K .#
++@
*39, = #0/ E.##1 I B 1 / R
33!36
*3<, 0/ EB1 0/ EB1 0
*3>, #1 /=/ GTXZ
*3@, . "
+73
*6A,
B R $
>+
XT
2A9
#1 /=/ GTXZ
XT
."
+73
*6+, =
*62, G B/ H BNTN= X =
*++
2AA2,
R
*63, ;/B0O/ H BB/N=1 0
+@
2AA2
;
G
=
0
.
*66, BG.0.1 = .NH1B /0.[N N.G B .E/B.1
2AA2 U) &
JJPPP
J FJ
! ) V L0
*67, / E.0 /
=
"
T
P
E
"
&=
.
&3A
.
%
0
/ E.0 /
*69, /## E/ ; B TN R % B
2AA2
L
" M
2AA2M
&
/
P
=
22
*6<, . "
*6>, BG.0.1 = .NH1B /0.[N N.G B .E/B.1 N
U) &JJPPP
J J
) V L0
&2+
2AA3M
+@
2AA3
L
" M
2+ 2<
&
2