| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [noun] [noun sg] [prep] a | 621 |
|
| 2 | role of [noun] [noun sg] [prep] | 50 |
|
| 3 | role of [noun] [prep] a | 29 |
|
| 4 | role of [noun sg] [prep] a | 21 |
|
