| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be placed at the | 57 |
|
| 2 | be placed at the | 19 |
|
| 3 | been placed at the | 11 |
|
| 4 | is placed at the | 11 |
|
| 5 | were placed at the | 5 |
|
