| for hundreds of thousands of years | 11 | temporal |
| very | 9 | degree |
| because of the arsenic | 9 | cause |
| waste → be → dangerous | 66 |
| waste → remain → dangerous | 8 |
| waste → be dangerous to → the environment | 5 |
| waste → be considered → dangerous | 4 |
| negative | neutral | positive |
| 0.834 | 0.148 | 0.018 |
| Raw frequency | 83 |
| Normalized frequency | 0.568 |
| Modifier score | 0.656 |
| Perplexity | 218.238 |