| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | issue [prep] whether a | 7 |
|
| 2 | issue [prep] [subord] a | 7 |
|
| 3 | issue of [subord] a | 7 |
|
| 4 | issue [prep] [subord] a | 7 |
|
| 5 | issue of [subord] a | 7 |
|
