| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have entered [art] period | 5 |
|
| 2 | [verb] entered [art] period | 5 |
|
| 3 | entered [art] period [prep] | 9 |
|
| 4 | entered [art] period [prep] | 9 |
|
| 5 | entered [art] period of | 8 |
|
| 6 | entered [art] period of | 8 |
|
