| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] [art] [adj] | 30606 |
|
| 2 | [noun] [prep] [art] [adj] period | 1778 |
|
| 3 | a [noun] [prep] [art] period | 102 |
|
| 4 | a [noun] [prep] [adj] period | 7 |
|
