| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | opened up the [noun] | 63 |
|
| 2 | opened up the [noun sg] | 56 |
|
| 3 | opened up the possibility | 8 |
|
| 4 | opened up the possibility | 8 |
|
| 5 | opened up the prospect | 6 |
|
| 6 | opened up the prospect | 6 |
|
