| as fuel | 6 | manner |
| very | 2 | degree |
| on a molecule for molecule basis | 2 | other |
| methane → be → effective | 9 |
| methane → be → useful | 3 |
| methane → be used for → example | 3 |
| negative | neutral | positive |
| 0.149 | 0.483 | 0.369 |
| Raw frequency | 15 |
| Normalized frequency | 0.341 |
| Modifier score | 0.500 |
| Perplexity | 191.439 |