| from other known drugs | 4 | other |
| each year | 3 | temporal |
| recently | 2 | temporal |
| new drug → be → created | 14 |
| new drug → be → produced | 11 |
| new drug → be → made | 9 |
| new drug → be → invented | 7 |
| new drug → be → manufactured | 3 |
| negative | neutral | positive |
| 0.272 | 0.547 | 0.181 |
| Raw frequency | 44 |
| Normalized frequency | 0.660 |
| Modifier score | 0.675 |
| Perplexity | 120.079 |