| Typicality: | 0.373 |
| Saliency: | 0.288 |
| on the first day | 4 | temporal |
| in the spinal canal | 2 | location |
| catheter → be placed in → epidural space | 7 |
| catheter → be threaded into → epidural space | 5 |
| catheter → be inserted into → epidural space | 5 |
| negative | neutral | positive |
| 0.242 | 0.703 | 0.055 |
| Raw frequency | 17 |
| Normalized frequency | 0.288 |
| Modifier score | 0.500 |
| Perplexity | 17.866 |