| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [that] over [art] period [prep] | 8 |
|
| 2 | that over [art] period [prep] | 8 |
|
| 3 | [that] over [art] period of | 7 |
|
| 4 | [that] over a period [prep] | 6 |
|
| 5 | [that] over a period [prep] | 6 |
|
