| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] at a | 772 |
|
| 2 | who [prep] a | 137 |
|
| 3 | who at [art] | 81 |
|
| 4 | who at [art] | 81 |
|
| 5 | who at a | 8 |
|
