| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] period of [adj] [noun] | 1144 |
|
| 2 | [art] period of [adj] [noun pl] | 564 |
|
| 3 | [art] [noun] of [adj] days | 287 |
|
| 4 | [art] period of [adj] day | 62 |
|
| 5 | [art] period [prep] [adj] days | 61 |
|
