SimilarityRank
a_few_year_back 0.686 30838
over_a_decade_ago 0.678 94008
two_year_ago 0.655 9948
a_few_year_ago 0.654 7726
nearly_[number]_year_ago 0.649 48159
a_couple_of_year_ago 0.645 23717
almost_[number]_year_ago 0.642 51448
many_year_ago 0.636 15620
three_year_ago 0.631 17729
seven_year_ago 0.631 57324
over_[number]_year_ago 0.631 22327
six_year_ago 0.627 44920
some_year_ago 0.627 24729
some_[number]_year_ago 0.620 44893
four_year_ago 0.617 22498
a_decade_ago 0.615 23265
more_than_a_decade_ago 0.614 83759
several_year_ago 0.613 13891
five_year_ago 0.611 21349
in_the_early_90 0.610 57910
eight_year_ago 0.606 65575
in_the_early_80 0.606 95646
[number]_year_ago 0.606 3595
in_the_late_1990 0.605 26724
ten_year_ago 0.601 32649