| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] employees at [det] | 5 |
|
| 2 | [prep] employees at [det] | 5 |
|
| 3 | employees at [det] [noun] | 16 |
|
| 4 | employees at [det] levels | 13 |
|
| 5 | employees at [det] level | 13 |
|
| 6 | employees at [det] [noun pl] | 13 |
|
