| Typicality: | 0.339 |
| Saliency: | 0.210 |
| on several central nervous system diseases | 6 | transitive-object |
| melatonin → be → neuroprotective | 7 |
| melatonin → exert → neuroprotective effect | 3 |
| negative | neutral | positive |
| 0.047 | 0.482 | 0.470 |
| Raw frequency | 10 |
| Normalized frequency | 0.210 |
| Modifier score | 0.500 |
| Perplexity | 13.355 |