| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [verb] [art] major contribution to | 7 |
|
| 2 | has [verb] [art] major contribution [prep] | 7 |
|
| 3 | has [verb] [art] major contribution [prep] | 7 |
|
| 4 | has [verb] [art] major contribution to | 7 |
|
