| very | 5 | degree |
| for forklifts | 4 | purpose |
| with eco-conscious consumers | 2 | other |
| propane → be → popular | 4 |
| propane → become → popular | 3 |
| propane → be → popular fuel | 3 |
| propane → be → popular choice | 3 |
| negative | neutral | positive |
| 0.068 | 0.320 | 0.612 |
| Raw frequency | 13 |
| Normalized frequency | 0.419 |
| Modifier score | 0.500 |
| Perplexity | 203.799 |