| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [art] period [prep] | 395 |
|
| 2 | [vb -s] [art] period [prep] | 89 |
|
| 3 | [vb -s] in [art] [prep] | 7 |
|
| 4 | [vb -s] in [art] period | 7 |
|
