| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | over [art] [adj] [num] year [noun sg] | 7 |
|
| 2 | over [art] [adj] [num] year [noun] | 7 |
|
| 3 | over [art] [adj] [num] year period | 6 |
|
| 4 | over [art] [adj] [num] year period | 6 |
|
