| owing to the use | 11 | other |
| in testing | 4 | location |
| very fuel | 4 | degree |
| concept → be → efficient | 34 |
| concept → be → more efficient | 9 |
| negative | neutral | positive |
| 0.048 | 0.370 | 0.583 |
| Raw frequency | 43 |
| Normalized frequency | 0.415 |
| Modifier score | 0.500 |
| Perplexity | 171.024 |