| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] staff at | 80 |
|
| 2 | [prep] staff at the | 65 |
|
| 3 | [noun sg] [prep] at the | 38 |
|
| 4 | [noun sg] staff at the | 21 |
|
