| for five years | 19 | temporal |
| to reduce the pain | 12 | purpose |
| during pregnancy | 11 | temporal |
| woman → take → drug | 263 |
| woman → have → drug | 11 |
| negative | neutral | positive |
| 0.513 | 0.428 | 0.059 |
| Raw frequency | 274 |
| Normalized frequency | 0.552 |
| Modifier score | 0.711 |
| Perplexity | 179.674 |