| often | 6 | temporal |
| in april | 3 | temporal |
| almost | 3 | degree |
| tumor → require → surgery | 20 |
| tumor → need → surgery | 5 |
| tumor → be → surgery | 4 |
| tumor → involve → surgery | 3 |
| tumor → lead to → surgery | 3 |
| tumor → require → surgical intervention | 3 |
| tumor → use → surgery | 3 |
| negative | neutral | positive |
| 0.517 | 0.424 | 0.059 |
| Raw frequency | 41 |
| Normalized frequency | 0.424 |
| Modifier score | 0.800 |
| Perplexity | 166.915 |