| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in may 1990 | 200 |
|
| 2 | in 1990 [pers pn] | 66 |
|
| 3 | in may [pers pn] | 33 |
|
| 4 | may 1990 [pers pn] | 9 |
|
