| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | issue [be] whether [art] | 29 |
|
| 2 | [prep] issue [be] [art] | 28 |
|
| 3 | [prep] issue [be] whether | 15 |
|
| 4 | [prep] [be] whether [art] | 7 |
|
