| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] [num] | 70003 |
|
| 2 | [prep] [art] period | 5697 |
|
| 3 | [art] [num] period | 140 |
|
| 4 | [prep] [num] period | 115 |
|
