| very | 14 | degree |
| on animals | 11 | transitive-object |
| to the environment | 10 | transitive-object |
| acid rain → be → harmful | 30 |
| acid rain → have → harmful effects | 7 |
| acid rain → harm → people | 3 |
| acid rain → cause → harm | 3 |
| negative | neutral | positive |
| 0.930 | 0.065 | 0.005 |
| Raw frequency | 43 |
| Normalized frequency | 0.870 |
| Modifier score | 0.500 |
| Perplexity | 104.488 |