| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who at [art] time of | 8 |
|
| 2 | who at the time of | 8 |
|
| 3 | who at the time of | 8 |
|
| 4 | who at [art] time of | 8 |
|
| 5 | who at [art] time of | 8 |
|
