| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] a [adj] | 6834 |
|
| 2 | [noun] [prep] a [adj] period | 704 |
|
| 3 | a [noun] [prep] a period | 31 |
|
| 4 | a [noun] [prep] [adj] period | 7 |
|
