| naturally | 9 | manner |
| in storms | 5 | temporal |
| in nature | 3 | location |
| ozone → be created by → lightning | 6 |
| ozone → be produced by → lightning | 6 |
| ozone → be formed by → lightning | 5 |
| negative | neutral | positive |
| 0.138 | 0.748 | 0.115 |
| Raw frequency | 17 |
| Normalized frequency | 0.370 |
| Modifier score | 0.500 |
| Perplexity | 102.145 |