| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] the [adj] role of | 197 |
|
| 2 | [verb] on the role of | 69 |
|
| 3 | [verb] on the [adj] role | 10 |
|
| 4 | on the [adj] role of | 5 |
|
