| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [noun] [prep] a | 12926 |
|
| 2 | [adj] [noun] [prep] a period | 179 |
|
| 3 | a [noun] [prep] a period | 31 |
|
| 4 | a [adj] [noun] [prep] period | 13 |
|
