| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in september 1989 | 183 |
|
| 2 | in 1989 [pers pn] | 60 |
|
| 3 | in september [pers pn] | 50 |
|
| 4 | september 1989 [pers pn] | 5 |
|
