| sometimes | 4 | temporal |
| to changes in blood flow | 3 | cause |
| by inserting a balloon catheter | 2 | manner |
| artery → be → dilated | 13 |
| artery → become → dilated | 7 |
| artery → dilate in → response | 3 |
| negative | neutral | positive |
| 0.291 | 0.597 | 0.112 |
| Raw frequency | 23 |
| Normalized frequency | 0.355 |
| Modifier score | 0.400 |
| Perplexity | 81.439 |