| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a long [noun] [prep] [noun] [noun sg] | 57 |
|
| 2 | a [adj] period [prep] [noun] [noun sg] | 35 |
|
| 3 | a long period [prep] [noun] [noun] | 8 |
|
| 4 | [art] long period [prep] [noun] [noun sg] | 6 |
|
