| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] period [prep] | 4704 |
|
| 2 | [adv] [art] period | 223 |
|
| 3 | [adv] [art] [prep] | 115 |
|
| 4 | [adv] period [prep] | 9 |
|
