| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [prep] | 1608 |
|
| 2 | [pron] is at | 1094 |
|
| 3 | which [be] at | 363 |
|
| 4 | which be at | 363 |
|
| 5 | which [is] at | 171 |
|
