| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [prep] a | 35609 |
|
| 2 | [prep] [noun] [prep] [Wh adv] | 784 |
|
| 3 | [prep] [noun] [Wh adv] a | 271 |
|
| 4 | [noun] [prep] [Wh adv] a | 204 |
|
