| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb -s] a [adj] contribution to | 6 |
|
| 2 | [adv] [vb -s] a [adj] contribution to | 6 |
|
| 3 | [adv] makes a [adj] contribution to | 6 |
|
| 4 | [adv] [vb -s] a [adj] contribution to | 6 |
|
