| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] over [art] [num] year [noun] | 5 |
|
| 2 | [n mass] over [art] [num] year [noun sg] | 5 |
|
| 3 | [n mass] over [art] [num] year period | 5 |
|
| 4 | [n mass] over [art] [num] year period | 5 |
|
