| Typicality: | 0.401 |
| Saliency: | 0.354 |
| serotonin → be produced in → central nervous system | 6 |
| serotonin → be produced by → nervous system | 4 |
| serotonin → be synthesized in → central nervous system | 4 |
| serotonin → be synthesized within → the cns | 3 |
| serotonin → be synthesized in → serotonergic neurons | 3 |
| negative | neutral | positive |
| 0.090 | 0.811 | 0.099 |
| Raw frequency | 20 |
| Normalized frequency | 0.354 |
| Modifier score | 0.500 |
| Perplexity | 55.081 |