| well | 7 | degree |
| generally | 4 | degree |
| than amitriptyline | 3 | other |
| melatonin → be → tolerated | 7 |
| melatonin → be → well-tolerated | 6 |
| negative | neutral | positive |
| 0.131 | 0.397 | 0.471 |
| Raw frequency | 13 |
| Normalized frequency | 0.255 |
| Modifier score | 0.500 |
| Perplexity | 172.520 |