SimilarityRank
natural 0.721 1659
man-made 0.698 27375
manmade 0.646 86906
natural_process 0.634 47228
natural_system 0.598 34720
naturally_occur 0.597 36494
natural_phenomenon 0.594 59487
natural_element 0.578 88770
biological 0.577 6546
ecological_system 0.570 67262
natural_ecosystem 0.564 62077
the_natural_environment 0.532 15722
natural_environment 0.529 23695
human_action 0.524 59963
anthropogenic 0.524 94954
artificial 0.519 11894
its_natural 0.516 86398
human_activity 0.513 16002
a_natural 0.509 8924
biological_system 0.506 36148
nature 0.506 746
natural_material 0.505 56739
the_natural_world 0.499 12528
synthetic 0.497 13350
human_community 0.497 57432