| no longer | 6 | temporal |
| to remove some tumours | 6 | purpose |
| on rare occasions | 3 | temporal |
| need → be → necessary | 46 |
| need → be deemed → necessary | 3 |
| negative | neutral | positive |
| 0.230 | 0.587 | 0.183 |
| Raw frequency | 49 |
| Normalized frequency | 0.406 |
| Modifier score | 0.850 |
| Perplexity | 224.645 |