| Typicality: | 0.548 |
| Saliency: | 0.566 |
| usually | 9 | temporal |
| by less than 30 minutes | 5 | temporal |
| immediately | 3 | manner |
| aura → precede → the headache | 11 |
| aura → occur before → the headache | 5 |
| aura → be followed by → headache | 5 |
| aura → come before → the headache | 3 |
| negative | neutral | positive |
| 0.296 | 0.646 | 0.059 |
| Raw frequency | 24 |
| Normalized frequency | 0.566 |
| Modifier score | 0.673 |
| Perplexity | 343.958 |