| frequently | 8 | temporal |
| in one of three forms | 4 | other |
| in pennsylvania | 3 | location |
| manganese → be found in → water | 11 |
| manganese → be found in → drinking water | 7 |
| manganese → occur in → private water systems | 4 |
| manganese → be present in → water | 3 |
| negative | neutral | positive |
| 0.291 | 0.675 | 0.033 |
| Raw frequency | 25 |
| Normalized frequency | 0.580 |
| Modifier score | 0.775 |
| Perplexity | 29.670 |