| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | issue [prep] [art] [noun sg] | 1311 |
|
| 2 | [prep] whether [art] [noun sg] | 843 |
|
| 3 | issue [prep] whether [art] | 38 |
|
| 4 | issue [prep] whether [noun sg] | 13 |
|
