| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 1990 and [prep] | 43 |
|
| 2 | 1990 [coord] in | 15 |
|
| 3 | 1990 [coord] to | 6 |
|
| 4 | 1990 [coord] of | 5 |
|
| 5 | 1990 [coord] with | 5 |
|
