| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been at the | 14 |
|
| 2 | which have been at [art] | 14 |
|
| 3 | which have been at the | 14 |
|
| 4 | which has been at [art] | 6 |
|
| 5 | which had been at [art] | 5 |
|
