| down wind | 3 | transitive-object |
| gas → cause → acid rain | 15 |
| gas → contribute to → acid rain | 5 |
| gas → form → acid rain | 4 |
| gas → result in → acid rain | 3 |
| gas → produce → acid rain | 3 |
| negative | neutral | positive |
| 0.624 | 0.324 | 0.052 |
| Raw frequency | 30 |
| Normalized frequency | 0.413 |
| Modifier score | 0.333 |
| Perplexity | 143.780 |