| to cancer | 11 | other |
| to birth defects | 6 | other |
| often | 2 | temporal |
| chemical → be → linked | 17 |
| chemical → be → related | 7 |
| chemical → have → link | 6 |
| negative | neutral | positive |
| 0.569 | 0.377 | 0.054 |
| Raw frequency | 30 |
| Normalized frequency | 0.383 |
| Modifier score | 0.550 |
| Perplexity | 116.956 |