SimilarityRank
natural_system 0.774 34720
natural_ecosystem 0.684 62077
biological_process 0.672 41255
physical_process 0.670 63803
natural 0.656 1659
ecological_system 0.649 67262
natural_phenomenon 0.648 59487
the_biosphere 0.637 42448
chemical_process 0.636 59123
both_natural_and 0.634 82569
evolutionary_process 0.629 64220
human_activity 0.623 16002
anthropogenic 0.620 94954
live_organism 0.614 48514
human_action 0.607 59963
biological_system 0.605 36148
human_intervention 0.596 92052
naturally_occur 0.596 36494
natural_element 0.594 88770
million_of_year 0.590 47068
the_natural_world 0.590 12528
ecosystem_function 0.588 92822
nature 0.584 746
the_natural_environment 0.582 15722
natural_landscape 0.578 44067