| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] [noun] [prep] a [noun] | 1706 |
|
| 2 | at [art] [noun] [prep] a [noun sg] | 1652 |
|
| 3 | [prep] [art] [noun] [prep] a period | 104 |
|
| 4 | at [art] [noun] [prep] [art] period | 60 |
|
| 5 | at [art] [noun] [prep] [art] period | 60 |
|
| 6 | at [art] [noun] [prep] a period | 11 |
|
| 7 | at [art] [noun] [prep] a period | 11 |
|
| 8 | at [art] [noun] [prep] a period | 11 |
|
