| Typicality: | 0.378 |
| Saliency: | 0.299 |
| to make methane | 9 | purpose |
| to produce synthetic methane | 5 | purpose |
| from the martian atmosphere | 3 | location |
| hydrogen → be combined with → carbon dioxide | 9 |
| hydrogen → be combined with → co2 | 3 |
| hydrogen → be reacted with → co2 | 3 |
| negative | neutral | positive |
| 0.122 | 0.712 | 0.166 |
| Raw frequency | 15 |
| Normalized frequency | 0.299 |
| Modifier score | 0.500 |
| Perplexity | 22.344 |