| in the seed region | 5 | location |
| at sites | 2 | location |
| virus → have → mutation | 7 |
| virus → acquire → mutation | 4 |
| virus → develop → mutation | 3 |
| negative | neutral | positive |
| 0.602 | 0.382 | 0.016 |
| Raw frequency | 14 |
| Normalized frequency | 0.372 |
| Modifier score | 0.500 |
| Perplexity | 290.827 |