| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which [noun] | 17062 |
|
| 2 | at [pron] [noun] | 16220 |
|
| 3 | at [Wh det] [noun] | 1277 |
|
| 4 | at which [noun] | 816 |
|
