| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [noun] of | 129427 |
|
| 2 | [art] [adj] period of | 1471 |
|
| 3 | a [adj] period [prep] | 1333 |
|
| 4 | a [adj] period [prep] | 1333 |
|
| 5 | a [adj] period of | 954 |
|
