| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [v-ing] at the head [prep] | 8 |
|
| 2 | [noun] [v-ing] at the head [prep] | 8 |
|
| 3 | [noun] [v-ing] at the head of | 8 |
|
| 4 | [noun] [v-ing] at the head of | 8 |
|
