| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] identifier must [be] unique | 5 |
|
| 2 | [noun prp] identifier must [be] unique | 5 |
|
| 3 | identifier must [be] unique on | 6 |
|
| 4 | identifier must [be] unique [prep] | 6 |
|
| 5 | identifier must [be] unique on | 6 |
|
| 6 | identifier must [be] unique [prep] | 6 |
|
