| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [adj] period [pron] | 121 |
|
| 2 | [art] [adj] period was | 69 |
|
| 3 | [art] [adj] was [pron] | 41 |
|
| 4 | [adj] period was [pron] | 5 |
|
