| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] | 455003 |
|
| 2 | a [noun sg] [prep] | 442885 |
|
| 3 | [art] period [prep] | 4704 |
|
| 4 | [art] period [prep] | 4704 |
|
| 5 | a period [prep] | 2665 |
|
| 6 | a period [prep] | 2665 |
|
