| Typicality: | 0.363 |
| Saliency: | 0.242 |
| usually | 8 | temporal |
| gradually | 6 | manner |
| to months | 4 | temporal |
| symptom → develop over → several weeks | 6 |
| symptom → develop over → a few weeks | 5 |
| symptom → develop over → a period of weeks | 4 |
| symptom → evolve over → the course of several weeks | 3 |
| negative | neutral | positive |
| 0.580 | 0.392 | 0.028 |
| Raw frequency | 18 |
| Normalized frequency | 0.242 |
| Modifier score | 0.800 |
| Perplexity | 19.390 |