| Typicality: | 0.356 |
| Saliency: | 0.248 |
| to maintenance | 3 | purpose |
| in the ability of the u.s. | 3 | other |
| space shuttle → be → essential | 3 |
| space shuttle → play → essential role | 3 |
| negative | neutral | positive |
| 0.299 | 0.503 | 0.199 |
| Raw frequency | 6 |
| Normalized frequency | 0.248 |
| Modifier score | 0.500 |
| Perplexity | 126.980 |