| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] [noun] and | 8668 |
|
| 2 | [prep] a [adj] [noun] period | 114 |
|
| 3 | [prep] a [adj] period and | 50 |
|
| 4 | a [adj] [noun] period and | 13 |
|
