| Typicality: | 0.285 |
| Saliency: | 0.083 |
| in a further embodiment | 4 | other |
| by adding at least one promoter | 4 | manner |
| boron → be added to → the catalyst system | 4 |
| negative | neutral | positive |
| 0.007 | 0.823 | 0.170 |
| Raw frequency | 4 |
| Normalized frequency | 0.083 |
| Modifier score | 0.500 |
| Perplexity | 51.257 |