| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | open [adv prt] the prospect of | 13 |
|
| 2 | open up the prospect of | 13 |
|
| 3 | open [adv prt] the prospect of | 13 |
|
| 4 | opened [adv prt] the prospect of | 5 |
|
