| Typicality: | 0.590 |
| Saliency: | 1.000 |
| sulfur dioxide → cause → acid rain | 8 |
| sulfur dioxide → contribute to → acid rain | 8 |
| sulfur dioxide → form → acid rain | 4 |
| sulfur dioxide → be → primary causes of acid rain | 4 |
| sulfur dioxide → lead to → acid rain | 3 |
| negative | neutral | positive |
| 0.676 | 0.297 | 0.026 |
| Raw frequency | 27 |
| Normalized frequency | 1.000 |
| Modifier score | 0.500 |
| Perplexity | 22.726 |