SimilarityRank
for_a_long_period_of 0.696 48355
over_a_period 0.679 10371
over_time 0.661 2610
over_many_year 0.653 28027
over_several_year 0.625 61781
over_a_number_of_year 0.622 82216
over_decade 0.601 80601
for_a_long_period 0.583 76041
for_long_period_of_time 0.583 45690
long_term 0.573 2907
for_long_period 0.571 55766
in_a_short_period_of 0.554 56339
for_an_extended_period_of 0.540 77299
for_a_short_period_of 0.526 78905
long-term 0.504 3822
long_period 0.503 90160
long_period_of 0.502 82414
period_of_time 0.502 20386
length_of_time 0.486 63940
on_an_ongoing_basis 0.480 38247
several_year 0.472 27038
for_a_long_time 0.470 4563
different_time 0.470 13758
a_[number]_year_period 0.468 93382
for_longer 0.466 46136