| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have opened up the [noun] of | 7 |
|
| 2 | [verb] opened up the [noun] of | 7 |
|
| 3 | opened up [prep] the [noun] of | 10 |
|
| 4 | opened up [prep] the [noun] of | 10 |
|
