| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it makes [art] [adj] contribution | 6 |
|
| 2 | it makes a [adj] contribution | 6 |
|
| 3 | it makes a [adj] contribution | 6 |
|
| 4 | it makes [art] [adj] contribution | 6 |
|
