| Typicality: | 0.465 |
| Saliency: | 0.505 |
| naturally | 5 | manner |
| by removing sediment | 4 | manner |
| wetland → purify → water | 14 |
| wetland → help purify → water | 6 |
| wetland → purify → our water | 5 |
| wetland → purify → the water | 3 |
| negative | neutral | positive |
| 0.063 | 0.512 | 0.425 |
| Raw frequency | 28 |
| Normalized frequency | 0.505 |
| Modifier score | 0.500 |
| Perplexity | 108.987 |