SimilarityRank
long_period_of 0.665 82414
period_of 0.641 4660
period_of_time 0.634 20386
a_period 0.620 19885
a_period_of 0.613 8962
for_long_period 0.610 55766
period_during 0.607 88778
for_a_long_period 0.600 76041
period 0.592 1069
for_a_period 0.572 8259
for_a_long_period_of 0.561 48355
for_long_than 0.544 91821
longer 0.539 6704
for_long_period_of_time 0.528 45690
time_period 0.525 11084
length_of_time 0.522 63940
a_short_time 0.522 77579
several_month 0.520 42484
more_than_[number]_day 0.515 51166
short_time 0.511 37972
several_day 0.511 47967
prolonged 0.511 16293
or_longer 0.509 79174
time_interval 0.509 57279
much_longer 0.505 44717