| Typicality: | 0.659 |
| Saliency: | 0.616 |
| between 1992 | 5 | temporal |
| over the past three decades | 4 | temporal |
| at the national institutes of health | 4 | location |
| trial → be conducted in → the united states | 41 |
| trial → be conducted in → the us | 36 |
| trial → be conducted in → the usa | 30 |
| trial → be conducted in → the u.s. | 28 |
| trial → be conducted in → usa | 4 |
| negative | neutral | positive |
| 0.098 | 0.818 | 0.083 |
| Raw frequency | 139 |
| Normalized frequency | 0.616 |
| Modifier score | 0.950 |
| Perplexity | 22.190 |