| Typicality: | 0.549 |
| Saliency: | 0.322 |
| currently | 12 | temporal |
| since the 1980 | 5 | temporal |
| against four of the five strains | 3 | other |
| vaccine → be available in → the united states | 23 |
| vaccine → be available in → the u.s. | 5 |
| vaccine → be available in → the us | 4 |
| negative | neutral | positive |
| 0.111 | 0.629 | 0.259 |
| Raw frequency | 32 |
| Normalized frequency | 0.322 |
| Modifier score | 1.000 |
| Perplexity | 12.988 |