| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [prep] [noun] ' | 373 |
|
| 2 | [prep] [noun] [prep] worker ['s] | 7 |
|
| 3 | [prep] [noun] [prep] worker ' | 7 |
|
| 4 | [prep] [noun] [prep] worker [unc] | 7 |
|
