| Typicality: | 0.375 |
| Saliency: | 0.294 |
| under anaerobic condition | 3 | other |
| methane → be produced as → a by | 5 |
| methane → be produced by → non-biological process | 4 |
| methane → be produced by → process | 3 |
| negative | neutral | positive |
| 0.226 | 0.734 | 0.040 |
| Raw frequency | 12 |
| Normalized frequency | 0.294 |
| Modifier score | 0.500 |
| Perplexity | 43.651 |