| well | 6 | manner |
| properly | 5 | manner |
| depending on the toxic chemicals | 5 | other |
| soil → be → treated | 98 |
| soil → be treated on → site | 9 |
| soil → be treated in → situ | 5 |
| negative | neutral | positive |
| 0.212 | 0.647 | 0.141 |
| Raw frequency | 112 |
| Normalized frequency | 0.518 |
| Modifier score | 0.880 |
| Perplexity | 160.396 |