| Share | Phrase |
|---|
| 15.46% | principally [degree] constitute |
| 13.77% | principally [degree] air |
| 12.38% | principally [degree] ammonia |
| 11.67% | principally [degree] define |
| 11.17% | principally [degree] incorporate |
| 9.96% | principally [degree] determine |
| 7.21% | principally [degree] weight |
| 6.70% | principally [degree] refer |
| 5.98% | principally [degree] cause |
| 5.64% | principally [degree] show |