| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the role of [noun] | 1495 |
|
| 2 | role of [noun] [prep] | 608 |
|
| 3 | the role [noun] [prep] | 10 |
|
| 4 | the of [noun] [prep] | 7 |
|
