| as a petrochemical feedstock | 9 | purpose |
| commonly | 7 | temporal |
| for transportation | 4 | purpose |
| propane → be used for → heating | 14 |
| propane → be used for → space heating | 10 |
| propane → be used for → home heating | 6 |
| propane → be utilized for → heating | 4 |
| propane → be used in → heating | 4 |
| propane → provide → space heating | 3 |
| negative | neutral | positive |
| 0.091 | 0.732 | 0.178 |
| Raw frequency | 41 |
| Normalized frequency | 0.748 |
| Modifier score | 0.800 |
| Perplexity | 25.910 |