| to humans | 5 | transitive-object |
| in excessive amounts | 4 | other |
| at concentrations | 3 | location |
| fluoride → be → poisonous | 34 |
| fluoride → be → poisonous substance | 4 |
| negative | neutral | positive |
| 0.851 | 0.129 | 0.020 |
| Raw frequency | 38 |
| Normalized frequency | 0.508 |
| Modifier score | 1.000 |
| Perplexity | 21.723 |