| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | solutions to the [adj] problem [prep] | 7 |
|
| 2 | solutions to the [adj] problem [prep] | 6 |
|
| 3 | solutions to the [adj] problem of | 6 |
|
| 4 | solutions to the [adj] problem of | 6 |
|
