| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] long period [prep] which | 9 |
|
| 2 | [art] long period [prep] [pron] | 9 |
|
| 3 | [art] long period [prep] which | 9 |
|
| 4 | a long period [prep] [pron] | 9 |
|
| 5 | [art] long period [prep] [Wh det] | 9 |
|
