| Typicality: | 0.309 |
| Saliency: | 0.139 |
| from its earliest space missions | 2 | temporal |
| fuel cell → be used by → nasa | 3 |
| fuel cell → be used in → the space program | 3 |
| negative | neutral | positive |
| 0.025 | 0.788 | 0.186 |
| Raw frequency | 6 |
| Normalized frequency | 0.139 |
| Modifier score | 0.500 |
| Perplexity | 187.297 |