| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] period [adj] | 84 |
|
| 2 | over the period [adj] | 82 |
|
| 3 | over the period [adj] | 82 |
|
| 4 | over [art] period [num] | 80 |
|
| 5 | over [art] period 1979 | 6 |
|
| 6 | over [art] period 1979 | 6 |
|
