| on the environment | 7 | transitive-object |
| to our rivers | 2 | transitive-object |
| waste → cause → pollution | 15 |
| waste → create → pollution | 5 |
| waste → cause → environmental pollution | 5 |
| waste → contribute to → pollution | 3 |
| negative | neutral | positive |
| 0.889 | 0.103 | 0.008 |
| Raw frequency | 28 |
| Normalized frequency | 0.382 |
| Modifier score | 0.500 |
| Perplexity | 435.733 |