| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] | 430262 |
|
| 2 | on [art] [noun] | 188075 |
|
| 3 | on [art] [noun] | 188075 |
|
| 4 | on a [noun] | 26264 |
|
