| often | 12 | temporal |
| to decrease its purity | 3 | purpose |
| with other dangerous drugs | 3 | other |
| heroin → be → mixed | 15 |
| heroin → be mixed with → other substances | 8 |
| heroin → be mixed with → other drugs | 4 |
| negative | neutral | positive |
| 0.600 | 0.378 | 0.022 |
| Raw frequency | 27 |
| Normalized frequency | 0.465 |
| Modifier score | 0.673 |
| Perplexity | 202.920 |