| during his first surgery | 4 | temporal |
| from his pulmonary valve | 3 | location |
| rapidly | 2 | manner |
| aorta → be → dissected | 13 |
| aorta → be dissected → free | 3 |
| negative | neutral | positive |
| 0.189 | 0.765 | 0.045 |
| Raw frequency | 16 |
| Normalized frequency | 0.473 |
| Modifier score | 0.800 |
| Perplexity | 56.025 |