| very | 62 | degree |
| in children | 14 | location |
| in the general population | 9 | location |
| tumor → be → rare | 188 |
| tumor → be → rarer | 3 |
| tumor → be → more rare | 3 |
| negative | neutral | positive |
| 0.352 | 0.558 | 0.090 |
| Raw frequency | 194 |
| Normalized frequency | 0.675 |
| Modifier score | 0.650 |
| Perplexity | 113.628 |