| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of [art] long period [prep] | 14 |
|
| 2 | [noun] of [art] long period of | 14 |
|
| 3 | [noun sg] of [art] long period [prep] | 12 |
|
| 4 | [noun] of a long period [prep] | 11 |
|
| 5 | [noun] of a long period [prep] | 11 |
|
| 6 | [noun] of [art] long period [prep] | 10 |
|
