| e1 | e2 | e3 | e4 | e5 | e6 | e7 | e8 |
2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
3 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
8 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
9 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 1 |
11 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |