| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] period [prep] which | 228 |
|
| 2 | [art] [adj -est] [prep] which | 49 |
|
| 3 | [art] [adj -est] period [prep] | 44 |
|
| 4 | [adj -est] period [prep] which | 6 |
|
