| naturally | 6 | manner |
| from insignificant traces to heavy contamination | 2 | other |
| metal → be found in → water | 10 |
| metal → be present in → the water | 5 |
| metal → be present in → water | 5 |
| metal → occur in → water | 4 |
| negative | neutral | positive |
| 0.218 | 0.679 | 0.102 |
| Raw frequency | 24 |
| Normalized frequency | 0.382 |
| Modifier score | 0.950 |
| Perplexity | 58.055 |