a |
b |
u |
a |
b |
a |
b |
u |
a |
b |
| ||
2 |
u |
a |
b |
a |
a |
b |
2 |
| ||
2 |
1 |
2 |
| ||
2 |
u |
| ||
2 |
e1 |
e2 |
a |
e1 |
e2 |
b |
e1 |
e2 |
a |
b |
A.1 | B.-1 | C.2 | D.-2 |
BA |
BC |
x2 |
4 |
PF1 |
PF2 |
A.0 | B.1 | C.2 | D.I |
0 |
a |
0 |
a |
b |
b |
a |
a |
a |
a |
b |
c |
a |
b |
c |
a |
b |
a |
b |
A.0 | B.1 | C.2 | D.3 |
a |
a |
b |
a |
b |
2 |
b |
A.
| B.
| C.5 | D.25 |
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