| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | labour [prep] [adj] per | 9 |
|
| 2 | [adj] on [adj] per | 8 |
|
| 3 | [adj] on [adj] per | 8 |
|
| 4 | labour on [adj] [unc] | 6 |
|
| 5 | labour on [adj] per | 6 |
|
