| Typicality: | 0.490 |
| Saliency: | 0.258 |
| in 1952 | 4 | temporal |
| vaccine → be developed by → jonas salk | 10 |
| vaccine → be developed by → dr. jonas salk | 7 |
| vaccine → be developed by → salk | 3 |
| negative | neutral | positive |
| 0.108 | 0.552 | 0.339 |
| Raw frequency | 20 |
| Normalized frequency | 0.258 |
| Modifier score | 0.900 |
| Perplexity | 54.579 |