| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [num] year [unc] | 325 |
|
| 2 | [noun prp] [prep] [adj] year [unc] | 97 |
|
| 3 | [noun prp] [prep] [num] [noun] [unc] | 50 |
|
| 4 | [noun prp] [prep] [num] year [unc] | 20 |
|
