| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | students ' union [noun sg] [coord] | 5 |
|
| 2 | students ' [noun] [noun sg] and | 5 |
|
| 3 | students ' union [noun sg] [coord] | 5 |
|
| 4 | students ' [noun sg] [noun sg] [coord] | 5 |
|
