| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adj] period and [art] | 5 |
|
| 2 | [prep] a [adj] period and [art] | 5 |
|
| 3 | a [adj] period and [prep] [art] | 7 |
|
| 4 | a [adj] period and [prep] [art] | 7 |
|
