| Similarity | Rank | |
|---|---|---|
| sewage | 0.782 | 6966 |
| rainwater | 0.716 | 16454 |
| manhole | 0.712 | 26057 |
| outfall | 0.693 | 28169 |
| soakaway | 0.693 | 47689 |
| cesspool | 0.688 | 45207 |
| watercourse | 0.668 | 22216 |
| rat-infested | 0.660 | 70742 |
| sewerage | 0.660 | 19246 |
| mill-pond | 0.659 | 77342 |
| foulness | 0.658 | 42049 |
| culvert | 0.658 | 30743 |
| sluice | 0.656 | 20807 |
| polluted | 0.650 | 13076 |
| standpipe | 0.647 | 70992 |
| drainage | 0.645 | 6052 |
| cistern | 0.644 | 11304 |
| sludge | 0.641 | 15255 |
| culverted | 0.637 | 88168 |
| effluent | 0.631 | 11027 |
| egress | 0.627 | 55667 |
| pipework | 0.623 | 23535 |
| gutter | 0.623 | 8311 |
| footway | 0.620 | 32872 |
| mill-race | 0.619 | 81504 |