| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | between 1980 and [num] [art] | 8 |
|
| 2 | [prep] 1980 and [num] [art] | 8 |
|
| 3 | [prep] 1980 and [num] [art] | 8 |
|
| 4 | between 1980 and [num] [art] | 8 |
|
| 5 | 1980 and [num] [art] [noun] | 5 |
|
