| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [prep] a [noun] | 8858 |
|
| 2 | at [noun prp] [prep] [noun] | 3306 |
|
| 3 | at [noun prp] [prep] a | 390 |
|
| 4 | at [noun prp] a [noun] | 110 |
|
| 5 | at [prep] a [noun] | 81 |
|
