| during pregnancy | 41 | temporal |
| earlier that day | 7 | temporal |
| in her life | 7 | temporal |
| mother → use → drug | 117 |
| mother → use → the drug | 20 |
| mother → do → drug | 18 |
| mother → used → drug | 7 |
| mother → have → drug | 7 |
| mother → taken → the drug | 5 |
| mother → used → the drug | 4 |
| negative | neutral | positive |
| 0.663 | 0.320 | 0.017 |
| Raw frequency | 178 |
| Normalized frequency | 0.650 |
| Modifier score | 0.933 |
| Perplexity | 103.687 |