| in metabolism | 4 | other |
| to the skin | 3 | transitive-object |
| generally | 2 | degree |
| serine → be → important | 6 |
| serine → be → beneficial | 3 |
| negative | neutral | positive |
| 0.012 | 0.470 | 0.518 |
| Raw frequency | 9 |
| Normalized frequency | 0.683 |
| Modifier score | 0.500 |
| Perplexity | 173.596 |