| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | through a [noun] | 3547 |
|
| 2 | [prep] a period | 2137 |
|
| 3 | through [art] period | 82 |
|
| 4 | through [art] period | 82 |
|
| 5 | through a period | 55 |
|
