| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [art] period of | 43 |
|
| 2 | [noun sg] and [art] period | 32 |
|
| 3 | [noun sg] [art] period of | 20 |
|
| 4 | [noun sg] and period of | 7 |
|
