| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [prep] [art] period [prep] | 363 |
|
| 2 | [pos pn] [noun pl] [prep] [art] period | 30 |
|
| 3 | [pos pn] [noun pl] [prep] [art] [prep] | 7 |
|
