| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] period [prep] | 1182 |
|
| 2 | [adj] [adj] period [prep] | 227 |
|
| 3 | [adj] a [adj] [prep] | 115 |
|
| 4 | [adj] a [adj] period | 34 |
|
| 5 | [adj] a period [prep] | 19 |
|
