| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | issue [prep] whether [noun sg] | 13 |
|
| 2 | issue of whether [noun sg] | 12 |
|
| 3 | issue [prep] whether [noun sg] | 12 |
|
| 4 | issue of whether [noun sg] | 12 |
|
