| Typicality: | 0.374 |
| Saliency: | 0.292 |
| to form pm2.5 | 5 | temporal |
| to produce ammonium salts | 2 | purpose |
| ammonia → react with → acid | 8 |
| ammonia → react with → form | 3 |
| negative | neutral | positive |
| 0.169 | 0.781 | 0.050 |
| Raw frequency | 11 |
| Normalized frequency | 0.292 |
| Modifier score | 0.500 |
| Perplexity | 70.454 |