| Share | Phrase |
|---|
| 17.80% | open up valve [perform operation] |
| 11.61% | valve [does] open up |
| 9.84% | open up passage [perform operation] |
| 9.75% | opening [connection] open up |
| 8.23% | remove [temporal] open up |
| 7.19% | side [location] open up |
| 6.47% | open up section [perform operation] |
| 6.34% | open up bore [perform operation] |
| 6.29% | open up conduit [perform operation] |
| 5.55% | open up area [perform operation] |
| 5.45% | open up space [perform operation] |
| 5.43% | open up path [perform operation] |