| Typicality: | 0.312 |
| Saliency: | 0.147 |
| for a limited period | 3 | temporal |
| methane → be detected in → martian atmosphere | 3 |
| methane → exist in → martian atmosphere | 3 |
| negative | neutral | positive |
| 0.096 | 0.769 | 0.135 |
| Raw frequency | 6 |
| Normalized frequency | 0.147 |
| Modifier score | 0.500 |
| Perplexity | 19.631 |