| B1 | B2 | B3 | B4 | W | CR |
B1 | 1 | 1 | 3 | 2 | 0.278 | 0.004 < 0.1 adopt |
B2 | 1 | 1 | 3 | 2 | 0.278 | |
B3 | 1/3 | 1/3 | 1 | 1/2 | 0.204 | |
B4 | 1/2 | 1/2 | 2 | 1 | 0.240 |