| Typicality: | 0.559 |
| Saliency: | 0.723 |
| from the beijing chemical factory | 5 | location |
| by combining calcium | 3 | manner |
| historically | 2 | temporal |
| sodium hydroxide → be → obtained | 10 |
| sodium hydroxide → be → produced | 7 |
| negative | neutral | positive |
| 0.165 | 0.765 | 0.070 |
| Raw frequency | 17 |
| Normalized frequency | 0.723 |
| Modifier score | 0.500 |
| Perplexity | 90.839 |