| Typicality: | 0.330 |
| Saliency: | 0.189 |
| during a threatened swine flu pandemic | 2 | temporal |
| vaccine → be used in → 2009 | 6 |
| vaccine → be approved in → 2009 | 3 |
| vaccine → be licensed in → 2009 | 3 |
| negative | neutral | positive |
| 0.154 | 0.667 | 0.179 |
| Raw frequency | 12 |
| Normalized frequency | 0.189 |
| Modifier score | 0.500 |
| Perplexity | 63.066 |