| Typicality: | 0.500 |
| Saliency: | 0.735 |
| very | 9 | degree |
| sometimes | 7 | degree |
| for 3 months | 7 | temporal |
| cough → be → persistent | 83 |
| cough → become → persistent | 16 |
| cough → be → more persistent | 3 |
| negative | neutral | positive |
| 0.590 | 0.364 | 0.046 |
| Raw frequency | 102 |
| Normalized frequency | 0.735 |
| Modifier score | 0.571 |
| Perplexity | 296.837 |