| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [adv] a period | 5 |
|
| 2 | were [adv] [art] period | 5 |
|
| 3 | were [adv] a period | 5 |
|
| 4 | were [adv] [art] period | 5 |
|
