| to hours | 10 | temporal |
| from a few minutes | 3 | temporal |
| between 2-7 days | 2 | temporal |
| symptom → can → last | 21 |
| symptom → be → prolonged | 5 |
| negative | neutral | positive |
| 0.531 | 0.415 | 0.054 |
| Raw frequency | 26 |
| Normalized frequency | 0.364 |
| Modifier score | 0.900 |
| Perplexity | 78.602 |