| Typicality: | 0.330 |
| Saliency: | 0.189 |
| with cells from an infected fetus | 2 | other |
| vaccine → be developed in → 1960 | 9 |
| vaccine → be introduced in → 1960 | 3 |
| negative | neutral | positive |
| 0.350 | 0.576 | 0.074 |
| Raw frequency | 12 |
| Normalized frequency | 0.189 |
| Modifier score | 0.500 |
| Perplexity | 17.791 |