| Typicality: | 0.351 |
| Saliency: | 0.240 |
| heavily | 6 | degree |
| highly | 3 | degree |
| in the last three decades | 2 | temporal |
| river → be polluted by → sewage | 5 |
| river → be contaminated by → sewage | 4 |
| river → be contaminated by → human sewage | 3 |
| negative | neutral | positive |
| 0.773 | 0.216 | 0.011 |
| Raw frequency | 12 |
| Normalized frequency | 0.240 |
| Modifier score | 0.767 |
| Perplexity | 117.710 |