| Typicality: | 0.274 |
| Saliency: | 0.262 |
| as of march | 3 | temporal |
| virus → emerge in → 2013 | 7 |
| virus → arrive in → late 2013 | 3 |
| virus → appear in → 2013 | 3 |
| negative | neutral | positive |
| 0.582 | 0.396 | 0.022 |
| Raw frequency | 13 |
| Normalized frequency | 0.262 |
| Modifier score | 0.500 |
| Perplexity | 129.950 |