| Typicality: | 0.440 |
| Saliency: | 0.446 |
| with severe depression | 5 | other |
| over the past ten years | 4 | temporal |
| as an anesthetic | 2 | manner |
| ketamine → be used in → human | 6 |
| ketamine → be used on → human | 5 |
| ketamine → be studied in → patient | 3 |
| negative | neutral | positive |
| 0.318 | 0.633 | 0.049 |
| Raw frequency | 14 |
| Normalized frequency | 0.446 |
| Modifier score | 0.500 |
| Perplexity | 35.559 |