| Similarity | Rank | |
|---|---|---|
| drinking_water | 0.709 | 14184 |
| sewage | 0.686 | 20240 |
| drink_water | 0.681 | 17506 |
| contamination | 0.679 | 11533 |
| ground_water | 0.677 | 30977 |
| contaminated | 0.677 | 43979 |
| groundwater | 0.670 | 10207 |
| waste_water | 0.670 | 36994 |
| treat_water | 0.668 | 93862 |
| be_contaminate | 0.668 | 65714 |
| wastewater | 0.667 | 16254 |
| contamination_of | 0.664 | 34161 |
| river_water | 0.659 | 72046 |
| potable_water | 0.654 | 47408 |
| tap_water | 0.644 | 47298 |
| effluent | 0.643 | 39640 |
| contaminant | 0.643 | 17936 |
| safe_drinking_water | 0.641 | 65737 |
| water_source | 0.637 | 24751 |
| human_waste | 0.637 | 89767 |
| flood_water | 0.632 | 66583 |
| contaminate | 0.631 | 22924 |
| contaminated_soil | 0.629 | 97927 |
| fresh_water | 0.629 | 16726 |
| industrial_waste | 0.617 | 70885 |