| very | 6 | degree |
| due to the high | 4 | cause |
| in recent years | 4 | temporal |
| heroin → be → popular | 8 |
| heroin → become → popular | 8 |
| heroin → be → popular drug | 3 |
| negative | neutral | positive |
| 0.285 | 0.416 | 0.298 |
| Raw frequency | 19 |
| Normalized frequency | 0.390 |
| Modifier score | 0.500 |
| Perplexity | 159.584 |