| pretty | 4 | degree |
| unfortunately | 4 | manner |
| in theory | 2 | other |
| vaccine → be → simple | 14 |
| vaccine → be → easy | 6 |
| vaccine → be easy to → administer | 5 |
| vaccine → be easy to → produce | 3 |
| vaccine → be → easy way | 3 |
| vaccine → be easy to → use | 3 |
| negative | neutral | positive |
| 0.211 | 0.364 | 0.424 |
| Raw frequency | 34 |
| Normalized frequency | 0.330 |
| Modifier score | 0.450 |
| Perplexity | 87.687 |