| through a fiberoptic light source | 4 | manner |
| inside the balloon | 3 | location |
| for irrigation | 2 | purpose |
| catheter → have → port | 5 |
| catheter → include → port | 5 |
| catheter → comprise → port | 4 |
| negative | neutral | positive |
| 0.041 | 0.903 | 0.056 |
| Raw frequency | 14 |
| Normalized frequency | 0.256 |
| Modifier score | 0.500 |
| Perplexity | 244.026 |