| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] period of [noun] the [noun pl] | 7 |
|
| 2 | [art] period of [noun] the [noun pl] | 7 |
|
| 3 | period of [noun] [prep] the [noun pl] | 9 |
|
| 4 | period of [noun] [prep] the [noun pl] | 9 |
|
