| Typicality: | 0.484 |
| Saliency: | 0.396 |
| in this type of reaction | 6 | temporal |
| for the reduction of co2 | 2 | purpose |
| for hydroxyl radical formation | 2 | purpose |
| metal → be used in → catalyst | 7 |
| metal → be used as → catalyst | 7 |
| metal → act as → catalyst | 3 |
| metal → serve as → catalyst | 3 |
| metal → be → catalyst | 3 |
| metal → be used to form → catalyst | 3 |
| negative | neutral | positive |
| 0.083 | 0.750 | 0.168 |
| Raw frequency | 26 |
| Normalized frequency | 0.396 |
| Modifier score | 0.700 |
| Perplexity | 114.645 |