| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [art] [noun] | 5827 |
|
| 2 | 1989 [art] [noun] | 260 |
|
| 3 | 1989 when [art] | 34 |
|
| 4 | 1989 when [noun] | 26 |
|
