SimilarityRank
be_not_clear 0.876 25766
remain_unclear_. 0.782 61353
be_uncertain 0.781 25526
be_unknown 0.739 8723
be_not_know 0.711 21842
remain_unknown_. 0.699 83257
unclear 0.694 31853
remain_unknown 0.689 95834
it_be_unclear 0.672 96477
it_be_unknown 0.651 73475
it_be_not_clear 0.647 43210
remain_a_mystery 0.643 70041
be_ambiguous 0.624 58935
not_clear 0.600 86587
it_be_unclear_whether 0.574 62460
it_be_not_clear_whether 0.571 72966
we_do_not_know 0.566 21798
it_be_hard_to_say 0.560 62167
be_questionable 0.560 39845
do_not_specify 0.556 99897
vague 0.539 15269
ambiguous 0.526 23665
no_one_know 0.525 42689
be_doubtful 0.523 99075
do_not_explain 0.521 94495