| according to the definition | 8 | other |
| by interrupting normal neural communications | 4 | manner |
| simply | 3 | degree |
| drug → be → chemical | 113 |
| drug → be → chemical substance | 35 |
| drug → be → chemical substances | 25 |
| drug → be → chemical compounds | 3 |
| negative | neutral | positive |
| 0.513 | 0.448 | 0.039 |
| Raw frequency | 176 |
| Normalized frequency | 0.542 |
| Modifier score | 0.935 |
| Perplexity | 42.173 |