C1 | P1 | P2 | P3 | P4 |
P1 | 1 | 1/5 | 1/3 | 2 |
P2 | 5 | 1 | 3 | 3 |
P3 | 3 | 1/3 | 1 | 3 |
P4 | 1/2 | 1/3 | 1/2 | 2 |