A | U1 | U2 | U3 | U4 | U5 | W |
U1 | 1 | 1/2 | 2 | 6 | 3 | 0.265 |
U2 | 2 | 1 | 3 | 7 | 4 | 0.418 |
U3 | 1/2 | 1/3 | 1 | 5 | 2 | 0.167 |
U4 | 1/6 | 1/7 | 1/5 | 1 | 1/4 | 0.041 |
U5 | 1/3 | 1/4 | 1/2 | 4 | 1 | 0.108 |