| Typicality: | 0.436 |
| Saliency: | 0.284 |
| to separate blood vessels | 5 | transitive-object |
| to accommodate variations | 4 | purpose |
| to separate soft tissues | 4 | purpose |
| surgeon → use → retractor | 12 |
| surgeon → insert → the retractor | 4 |
| surgeon → adjust → the retractor | 3 |
| negative | neutral | positive |
| 0.161 | 0.658 | 0.181 |
| Raw frequency | 19 |
| Normalized frequency | 0.284 |
| Modifier score | 0.700 |
| Perplexity | 238.921 |