| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years of [art] [noun] | 509 |
|
| 2 | twenty years of [noun] | 42 |
|
| 3 | twenty years [art] [noun] | 14 |
|
| 4 | twenty years of [art] | 9 |
|
| 5 | twenty of [art] [noun] | 9 |
|
