| relatively | 4 | degree |
| usually | 2 | degree |
| as a fuel source | 2 | manner |
| propane → be → cheap | 6 |
| propane → be → affordable | 5 |
| propane → be → inexpensive | 3 |
| negative | neutral | positive |
| 0.008 | 0.183 | 0.809 |
| Raw frequency | 14 |
| Normalized frequency | 0.441 |
| Modifier score | 0.800 |
| Perplexity | 75.248 |