| Typicality: | 0.356 |
| Saliency: | 0.249 |
| in making urethane foams | 3 | temporal |
| between the 1960s | 2 | temporal |
| mercury → act as → catalyst | 5 |
| mercury → be used as → catalyst | 4 |
| mercury → be → catalyst | 3 |
| negative | neutral | positive |
| 0.135 | 0.824 | 0.042 |
| Raw frequency | 12 |
| Normalized frequency | 0.249 |
| Modifier score | 0.500 |
| Perplexity | 10.552 |