| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [vb pp] at [art] | 223 |
|
| 2 | at a [noun] at [art] | 54 |
|
| 3 | at a [noun] [vb pp] at | 18 |
|
| 4 | at a [noun] [vb pp] [art] | 12 |
|
