| extremely | 7 | degree |
| in determining the course of treatment | 7 | purpose |
| in this occurrence | 5 | temporal |
| biopsy → be → helpful | 21 |
| biopsy → be → useful | 10 |
| biopsy → be → useful tool | 5 |
| biopsy → be → tool | 3 |
| negative | neutral | positive |
| 0.077 | 0.468 | 0.455 |
| Raw frequency | 39 |
| Normalized frequency | 0.480 |
| Modifier score | 0.433 |
| Perplexity | 248.439 |