| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in 1989 when [art] | 14 |
|
| 2 | in 1989 when [art] | 14 |
|
| 3 | in 1989 when the | 11 |
|
| 4 | in 1989 when the | 11 |
|
