| to align the side opening portion | 4 | purpose |
| continuously | 3 | temporal |
| during treatment | 2 | temporal |
| stent → be → rotated | 11 |
| stent → be rotated in → addition | 4 |
| negative | neutral | positive |
| 0.042 | 0.894 | 0.064 |
| Raw frequency | 15 |
| Normalized frequency | 0.332 |
| Modifier score | 0.500 |
| Perplexity | 375.263 |