| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [prep] a [det] | 212 |
|
| 2 | [noun] [prep] a [det] years | 170 |
|
| 3 | a [noun] [prep] [det] years | 83 |
|
| 4 | a [noun] a [det] years | 13 |
|
