| in bygone days | 3 | temporal |
| rarely | 2 | degree |
| sciatica → require → surgery | 4 |
| sciatica → undergo → surgery | 3 |
| sciatica → be treated with → surgery | 3 |
| negative | neutral | positive |
| 0.353 | 0.471 | 0.176 |
| Raw frequency | 10 |
| Normalized frequency | 0.276 |
| Modifier score | 0.100 |
| Perplexity | 124.958 |