| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] short period [prep] the | 7 |
|
| 2 | [prep] [art] short period [prep] the | 7 |
|
| 3 | [prep] a short period [prep] the | 5 |
|
| 4 | [prep] [art] short period [prep] the | 5 |
|
