| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of [art] police officers | 7 |
|
| 2 | [noun sg] of [art] police officers | 7 |
|
| 3 | [adj] of [art] police officers | 6 |
|
| 4 | of [art] police officers [verb] | 5 |
|
