| Typicality: | 0.485 |
| Saliency: | 0.247 |
| to produce nitric acid | 3 | purpose |
| ammonia → be used to produce → urea | 3 |
| ammonia → be used in → the production of urea | 3 |
| ammonia → be produced by → the hydrolysis of the urea | 3 |
| negative | neutral | positive |
| 0.188 | 0.784 | 0.027 |
| Raw frequency | 9 |
| Normalized frequency | 0.247 |
| Modifier score | 0.900 |
| Perplexity | 20.203 |