| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] [prep] | 583637 |
|
| 2 | police [noun] [prep] | 1469 |
|
| 3 | [prep] police [noun] | 1320 |
|
| 4 | [prep] police [prep] | 339 |
|
