| at atmospheric conditions | 7 | other |
| at normal temperature | 6 | manner |
| at pressure | 5 | manner |
| propane → be → gas | 45 |
| propane → be made from → natural gas | 10 |
| propane → be used as → gas | 4 |
| propane → be → natural gas | 4 |
| negative | neutral | positive |
| 0.196 | 0.738 | 0.066 |
| Raw frequency | 63 |
| Normalized frequency | 0.871 |
| Modifier score | 0.667 |
| Perplexity | 23.200 |