SimilarityRank
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