| morphine → be → drug | 11 |
| morphine → be → narcotic | 5 |
| morphine → be → a prescription drug | 3 |
| morphine → be → medicine | 3 |
| morphine → be → the drug | 3 |
| negative | neutral | positive |
| 0.369 | 0.474 | 0.158 |
| Raw frequency | 25 |
| Normalized frequency | 0.639 |
| Modifier score | 0.500 |
| Perplexity | 67.355 |