| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [noun] | 174586 |
|
| 2 | [noun] [prep] [noun] erm | 419 |
|
| 3 | [prep] a [noun] erm | 91 |
|
| 4 | [noun] [prep] a erm | 16 |
|
| 5 | [noun] a [noun] erm | 9 |
|
