| Similarity | Rank | |
|---|---|---|
| open-cast | 0.844 | 41720 |
| mining | 0.788 | 3831 |
| coal | 0.749 | 1861 |
| panguna | 0.743 | 75973 |
| colliery | 0.714 | 8951 |
| coalfield | 0.714 | 12925 |
| deep-mined | 0.713 | 81231 |
| low-sulphur | 0.694 | 51947 |
| lignite | 0.692 | 28489 |
| silvermines | 0.691 | 84917 |
| killingholme | 0.690 | 93988 |
| tynagh | 0.688 | 60690 |
| steel-making | 0.688 | 53715 |
| extractive | 0.686 | 41958 |
| oil-shale | 0.684 | 95945 |
| peatbog | 0.680 | 99210 |
| donbass | 0.679 | 90621 |
| coal-mining | 0.674 | 34982 |
| sharlston | 0.673 | 98573 |
| coal-mine | 0.672 | 58559 |
| industrial | 0.671 | 982 |
| afforestation | 0.671 | 25942 |
| bauxite | 0.670 | 34840 |
| silesian | 0.670 | 61789 |
| house-building | 0.667 | 28501 |