| gradually | 11 | manner |
| sometimes | 5 | temporal |
| at intervals of 3 min | 4 | temporal |
| drug → be → added | 177 |
| drug → be added to → the mix | 7 |
| negative | neutral | positive |
| 0.255 | 0.668 | 0.076 |
| Raw frequency | 184 |
| Normalized frequency | 0.548 |
| Modifier score | 0.420 |
| Perplexity | 67.985 |