| very | 67 | degree |
| for patients | 30 | transitive-object |
| in the treatment of dementia | 30 | purpose |
| drug → be → useful | 725 |
| drug → become → useful | 8 |
| drug → be found → useful | 6 |
| negative | neutral | positive |
| 0.108 | 0.397 | 0.495 |
| Raw frequency | 739 |
| Normalized frequency | 0.734 |
| Modifier score | 0.630 |
| Perplexity | 420.765 |