| because of their compact design | 5 | cause |
| noticeably | 3 | manner |
| on fuel | 3 | other |
| engine → be → lighter | 27 |
| engine → become → lighter | 4 |
| engine → be made → lighter | 3 |
| negative | neutral | positive |
| 0.060 | 0.347 | 0.593 |
| Raw frequency | 34 |
| Normalized frequency | 0.421 |
| Modifier score | 0.500 |
| Perplexity | 290.148 |