| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] | 257558 |
|
| 2 | at [art] [adj] | 30511 |
|
| 3 | at [art] [adj] | 30511 |
|
| 4 | at a [adj] | 9199 |
|
| 5 | at a [adj] | 8700 |
|
