| Typicality: | 0.588 |
| Saliency: | 0.528 |
| before an abortion | 14 | temporal |
| to determine amnionicity | 12 | purpose |
| between 11 weeks 0 days | 10 | temporal |
| woman → have → ultrasound | 77 |
| woman → undergo → ultrasound | 47 |
| woman → receive → ultrasound | 44 |
| woman → get → ultrasound | 27 |
| woman → have → an ultrasound scan | 11 |
| woman → be given → ultrasound | 9 |
| woman → have → diagnostic ultrasound | 6 |
| woman → be screened with → ultrasound | 4 |
| negative | neutral | positive |
| 0.247 | 0.688 | 0.065 |
| Raw frequency | 225 |
| Normalized frequency | 0.528 |
| Modifier score | 0.847 |
| Perplexity | 172.238 |