| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this be [art] [adj] period [prep] | 9 |
|
| 2 | this be [art] [adj] period [prep] | 7 |
|
| 3 | this be a [adj] period [prep] | 5 |
|
| 4 | this was [art] [adj] period [prep] | 5 |
|
