| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] period [prep] the | 390 |
|
| 2 | [adv] [prep] [art] period [prep] | 234 |
|
| 3 | [adv] [prep] [art] [prep] the | 96 |
|
| 4 | [adv] [art] period [prep] the | 9 |
|
