| to present themselves | 9 | purpose |
| to days | 5 | temporal |
| to develop | 5 | purpose |
| symptom → take → hour | 58 |
| symptom → take → several hours | 15 |
| symptom → take → a few hours | 4 |
| negative | neutral | positive |
| 0.627 | 0.355 | 0.017 |
| Raw frequency | 77 |
| Normalized frequency | 0.437 |
| Modifier score | 0.460 |
| Perplexity | 48.734 |