| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | by [art] [noun pl] ['s] union | 13 |
|
| 2 | by the [noun pl] ['s] union | 13 |
|
| 3 | by the [noun pl] ['s] union | 13 |
|
| 4 | by [art] [noun pl] ' union | 11 |
|
| 5 | by [art] students ['s] union | 6 |
|
