| Typicality: | 0.438 |
| Saliency: | 0.646 |
| based on its geologic characteristics | 4 | cause |
| aquifer → be → contaminated | 12 |
| aquifer → become → contaminated | 5 |
| aquifer → be contaminated by → chemical | 4 |
| negative | neutral | positive |
| 0.673 | 0.309 | 0.018 |
| Raw frequency | 21 |
| Normalized frequency | 0.646 |
| Modifier score | 0.500 |
| Perplexity | 158.617 |