| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [art] period of | 43 |
|
| 2 | and the period [prep] | 35 |
|
| 3 | and a period [prep] | 34 |
|
| 4 | and [art] period between | 8 |
|
| 5 | and [art] period for | 5 |
|
