| during the course of evolution | 12 | temporal |
| naturally | 6 | manner |
| during vaccination | 6 | temporal |
| mutation → be → selected | 96 |
| mutation → be → chosen | 7 |
| negative | neutral | positive |
| 0.258 | 0.640 | 0.102 |
| Raw frequency | 103 |
| Normalized frequency | 0.716 |
| Modifier score | 0.725 |
| Perplexity | 319.786 |