| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [adj] [prep] [num] year ' | 12 |
|
| 2 | [noun prp] [num] [prep] [num] year ' | 12 |
|
| 3 | [noun prp] [adj] [prep] [num] years ' | 12 |
|
| 4 | [noun prp] [adj] to [num] year ' | 10 |
|
