| to any changes in these patterns | 8 | other |
| for auroras | 5 | other |
| especially | 4 | degree |
| observer → be → alert | 9 |
| observer → be on → alert | 5 |
| observer → be → vigilant | 4 |
| negative | neutral | positive |
| 0.051 | 0.750 | 0.198 |
| Raw frequency | 18 |
| Normalized frequency | 0.419 |
| Modifier score | 0.800 |
| Perplexity | 17.782 |