SimilarityRank
thousand_of_year 0.763 70681
[number]_million_year_ago 0.664 80067
for_millennium 0.635 62319
life_form 0.632 31360
for_thousand_of_year 0.631 26866
thousand_of_year_ago 0.619 91960
life_on_earth 0.606 60639
the_human_species 0.598 84952
evolutionary_process 0.598 64220
live_organism 0.593 48514
life_on_Earth 0.591 67776
natural_process 0.590 47228
ice_age 0.585 82789
the_biosphere 0.572 42448
Homo_sapiens 0.571 91445
our_specie 0.562 68409
human_evolution 0.562 82895
modern_human 0.553 75948
human_civilization 0.552 84048
live_creature 0.550 97153
organism 0.547 6025
human_culture 0.546 62520
millennium 0.545 14057
human_history 0.542 48428
live_thing 0.539 38859