| Typicality: | 0.435 |
| Saliency: | 0.390 |
| typically | 18 | degree |
| suddenly | 11 | manner |
| between three weeks | 8 | temporal |
| symptom → begin with → headache | 30 |
| symptom → start with → headache | 12 |
| symptom → begin as → headache | 6 |
| symptom → start → headache | 3 |
| symptom → begin → headache | 3 |
| negative | neutral | positive |
| 0.812 | 0.178 | 0.011 |
| Raw frequency | 54 |
| Normalized frequency | 0.390 |
| Modifier score | 0.826 |
| Perplexity | 36.632 |