| in one embodiment | 6 | other |
| generally | 4 | degree |
| at each of its ends | 3 | location |
| stent → be made of → polymer | 13 |
| stent → include → a polymer body | 4 |
| stent → use → polymer | 4 |
| negative | neutral | positive |
| 0.072 | 0.839 | 0.090 |
| Raw frequency | 21 |
| Normalized frequency | 0.402 |
| Modifier score | 0.800 |
| Perplexity | 50.446 |