| in the over-65 age group | 9 | other |
| on antibiotic use | 6 | transitive-object |
| on early plasma virus levels | 5 | location |
| vaccine → have → impact | 16 |
| vaccine → have → significant impact | 10 |
| vaccine → have → major impact | 6 |
| vaccine → have → what impact | 4 |
| vaccine → have → important impact | 3 |
| vaccine → have → much impact | 3 |
| negative | neutral | positive |
| 0.225 | 0.527 | 0.248 |
| Raw frequency | 42 |
| Normalized frequency | 0.359 |
| Modifier score | 0.600 |
| Perplexity | 96.184 |