| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [adj] a [noun] | 24 |
|
| 2 | [prep] [adj] a period | 20 |
|
| 3 | [prep] [adj] a period | 20 |
|
| 4 | over [adj] [art] period | 5 |
|
| 5 | over [adj] a period | 5 |
|
