| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | during [art] [adj] period in | 24 |
|
| 2 | during [art] [adj] period in | 22 |
|
| 3 | during the [adj] period in | 14 |
|
| 4 | during a [adj] period in | 8 |
|
