SimilarityRank
period_of 0.708 4660
a_period_of 0.697 8962
prolonged 0.679 16293
long_period 0.665 90160
a_prolonged 0.599 83035
during_period_of 0.581 43674
period_during 0.580 88778
during_a_period 0.573 36650
after_a_period 0.569 34261
for_long_period 0.569 55766
for_a_long_period 0.560 76041
protracted 0.547 54435
bout_of 0.546 76161
this_period 0.538 12824
sustained 0.530 17204
several_year_of 0.528 92254
for_a_long_period_of 0.526 48355
a_period 0.521 19885
for_long_period_of_time 0.515 45690
especially_during 0.512 63556
,_particularly_during 0.511 65060
period_of_time 0.509 20386
period 0.504 1069
over_a_long_period_of 0.502 50448
many_year_of 0.502 46221