| Typicality: | 0.447 |
| Saliency: | 0.461 |
| naturally | 6 | manner |
| from chemical reactions of precursor emissions | 6 | cause |
| over time | 3 | temporal |
| ozone → be formed in → the atmosphere | 17 |
| ozone → form in → the atmosphere | 5 |
| ozone → be produced in → the atmosphere | 4 |
| negative | neutral | positive |
| 0.299 | 0.637 | 0.064 |
| Raw frequency | 26 |
| Normalized frequency | 0.461 |
| Modifier score | 0.500 |
| Perplexity | 35.637 |