| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [art] period of | 111 |
|
| 2 | of [art] period of | 111 |
|
| 3 | of [art] period of | 108 |
|
| 4 | of the period of | 67 |
|
| 5 | of a period of | 44 |
|
