| the earlier | 21 | temporal |
| over a period of time | 20 | temporal |
| regularly | 19 | degree |
| person → use → drug | 805 |
| person → do → drug | 32 |
| negative | neutral | positive |
| 0.597 | 0.361 | 0.041 |
| Raw frequency | 837 |
| Normalized frequency | 0.689 |
| Modifier score | 0.725 |
| Perplexity | 204.832 |