| from the body | 10 | other |
| from the leachate | 6 | location |
| from the natural gas stream | 5 | location |
| sulfur → be → removed | 38 |
| sulfur → remove → agent | 3 |
| negative | neutral | positive |
| 0.223 | 0.660 | 0.118 |
| Raw frequency | 41 |
| Normalized frequency | 0.678 |
| Modifier score | 0.867 |
| Perplexity | 80.337 |