| due to drug use | 20 | cause |
| in many cases | 13 | temporal |
| currently | 8 | temporal |
| tooth → be → tarnished | 30 |
| tooth → become → tarnished | 16 |
| negative | neutral | positive |
| 0.828 | 0.148 | 0.024 |
| Raw frequency | 46 |
| Normalized frequency | 0.354 |
| Modifier score | 0.400 |
| Perplexity | 260.396 |