| Typicality: | 0.335 |
| Saliency: | 0.200 |
| to determine | 4 | purpose |
| vaccine → be introduced over → time | 4 |
| vaccine → work over → time | 3 |
| vaccine → be used over → time | 3 |
| vaccine → be given over → time | 3 |
| negative | neutral | positive |
| 0.268 | 0.553 | 0.179 |
| Raw frequency | 13 |
| Normalized frequency | 0.200 |
| Modifier score | 0.500 |
| Perplexity | 65.001 |