| more fuel | 27 | degree |
| very | 25 | degree |
| in a narrow band of rpm | 9 | other |
| engine → be → efficient | 129 |
| engine → be designed to be → efficient | 3 |
| negative | neutral | positive |
| 0.048 | 0.223 | 0.729 |
| Raw frequency | 132 |
| Normalized frequency | 0.657 |
| Modifier score | 0.980 |
| Perplexity | 249.699 |