SimilarityRank
know_why 0.740 57478
understand_how 0.716 10793
to_understand_why 0.680 73158
understand_what 0.662 17762
explain_why 0.656 9475
see_why 0.649 44071
why 0.624 350
learn_why 0.619 68663
understand 0.618 501
understand_what_be 0.588 45339
find_out_why 0.585 48555
know_if 0.584 51653
wonder_why 0.583 24073
the_reason_why 0.579 7718
know_what 0.573 6282
ask_why 0.569 22961
know_how 0.568 15221
discuss_why 0.568 71266
understanding_how 0.564 60130
understand_that 0.562 4316
fully_understand 0.560 29678
truly_understand 0.556 88459
well_understand 0.551 21359
realize_that 0.549 6048
show_why 0.545 49065