| as a fuel | 8 | manner |
| much more | 5 | degree |
| very | 5 | degree |
| hydrogen → be → efficient | 22 |
| hydrogen → be → effective | 15 |
| hydrogen → be → more efficient | 4 |
| hydrogen → be → more effective | 3 |
| negative | neutral | positive |
| 0.109 | 0.319 | 0.573 |
| Raw frequency | 44 |
| Normalized frequency | 0.499 |
| Modifier score | 0.500 |
| Perplexity | 74.121 |