| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | open up the [noun sg] of [adj] | 12 |
|
| 2 | open up the [noun sg] of [adj] | 9 |
|
| 3 | open up the prospect of [adj] | 5 |
|
| 4 | open up the possibility of [adj] | 5 |
|
