| highly | 12 | degree |
| to the environment | 8 | transitive-object |
| often | 4 | degree |
| fuel → be → toxic | 27 |
| fuel → be → dangerous | 26 |
| fuel → be → harmful | 7 |
| fuel → be → hazardous | 6 |
| negative | neutral | positive |
| 0.833 | 0.131 | 0.036 |
| Raw frequency | 66 |
| Normalized frequency | 0.600 |
| Modifier score | 0.864 |
| Perplexity | 214.062 |