| to pharmaceuticals | 6 | transitive-object |
| as a by | 3 | other |
| currently | 2 | temporal |
| pyridine → be → added | 5 |
| pyridine → be → produced | 3 |
| pyridine → be used as → precursor | 3 |
| pyridine → be → basic | 3 |
| negative | neutral | positive |
| 0.140 | 0.758 | 0.103 |
| Raw frequency | 14 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 106.037 |