| commonly | 3 | temporal |
| highly | 2 | degree |
| prior to | 2 | temporal |
| heroin → be → abused | 15 |
| heroin → abuse → prescription painkillers | 3 |
| negative | neutral | positive |
| 0.735 | 0.243 | 0.022 |
| Raw frequency | 18 |
| Normalized frequency | 0.379 |
| Modifier score | 0.833 |
| Perplexity | 110.458 |