| to treat the symptoms | 10 | purpose |
| for many years | 7 | temporal |
| often | 4 | degree |
| therapy → be → employed | 23 |
| therapy → be → utilized | 16 |
| therapy → be in → use | 14 |
| therapy → be → practical | 7 |
| therapy → be made → use | 6 |
| therapy → be → utilised | 3 |
| negative | neutral | positive |
| 0.089 | 0.544 | 0.367 |
| Raw frequency | 69 |
| Normalized frequency | 0.552 |
| Modifier score | 0.738 |
| Perplexity | 77.512 |