| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | challenge to [noun pl] [unc] [noun] | 6 |
|
| 2 | challenge to [noun pl] [unc] decision | 5 |
|
| 3 | challenge to [noun pl] [unc] decisions | 5 |
|
| 4 | challenge to [noun pl] [unc] [noun pl] | 5 |
|
