| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] [adj] period [prep] time | 388 |
|
| 2 | [art] long period [prep] [noun] | 207 |
|
| 3 | [art] long [noun] [prep] time | 135 |
|
| 4 | [art] long period [prep] time | 120 |
|
| 5 | [art] long period [prep] time | 120 |
|
