| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [noun] [vb pp] [prep] [art] period | 7 |
|
| 2 | [art] [noun] [vb pp] [prep] the period | 6 |
|
| 3 | [art] [noun sg] [vb pp] [prep] [art] period | 5 |
|
