| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was carried out at [art] | 13 |
|
| 2 | was carried out at [art] | 13 |
|
| 3 | was carried out at the | 7 |
|
| 4 | was carried out at the | 7 |
|
| 5 | was carried out at a | 6 |
|
| 6 | was carried out at a | 6 |
|
