| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] had make a [adj] contribution | 5 |
|
| 2 | had make a [adj] contribution [prep] | 8 |
|
| 3 | had make a [adj] contribution [prep] | 8 |
|
| 4 | had make a [adj] contribution to | 7 |
|
| 5 | had make a [adj] contribution to | 7 |
|
