| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | contribution to [adj] [noun sg] | 209 |
|
| 2 | important to [adj] [noun sg] | 37 |
|
| 3 | important contribution to [noun sg] | 14 |
|
| 4 | important contribution to [adj] | 7 |
|
