| to such end | 4 | purpose |
| heretofore | 3 | temporal |
| nowadays | 2 | temporal |
| stent → be made of → material | 11 |
| stent → be made from → material | 6 |
| stent → be made from → sheets of material | 6 |
| stent → be made of → this material | 3 |
| stent → be made of → suitable material | 3 |
| stent → be of → material | 3 |
| stent → be constructed of → material | 3 |
| negative | neutral | positive |
| 0.130 | 0.746 | 0.124 |
| Raw frequency | 35 |
| Normalized frequency | 0.507 |
| Modifier score | 0.633 |
| Perplexity | 67.650 |