| Typicality: | 0.345 |
| Saliency: | 0.276 |
| over the years | 3 | temporal |
| with an artificial disc | 3 | other |
| surgeon → develop → new techniques | 9 |
| surgeon → use → new technique | 3 |
| surgeon → use → new techniques | 3 |
| surgeon → developed → new techniques | 3 |
| negative | neutral | positive |
| 0.053 | 0.421 | 0.527 |
| Raw frequency | 18 |
| Normalized frequency | 0.276 |
| Modifier score | 0.700 |
| Perplexity | 77.078 |