| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [adj] [unc] | 387 |
|
| 2 | [noun] [prep] [adj] years [unc] | 322 |
|
| 3 | [noun] [prep] a [adj] years | 237 |
|
| 4 | [prep] a [adj] years [unc] | 34 |
|
