| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the end of 1987 [art] | 5 |
|
| 2 | [art] end of 1987 [art] | 5 |
|
| 3 | [art] end of 1987 [art] | 5 |
|
| 4 | the end of 1987 [art] | 5 |
|
