| in chemistry | 17 | other |
| unlike the spark | 5 | other |
| by definition | 3 | other |
| catalyst → be → substance | 183 |
| catalyst → be → chemical | 21 |
| catalyst → be → chemical substance | 7 |
| catalyst → be → any substance | 5 |
| negative | neutral | positive |
| 0.074 | 0.815 | 0.111 |
| Raw frequency | 216 |
| Normalized frequency | 1.000 |
| Modifier score | 0.800 |
| Perplexity | 93.852 |