SimilarityRank
do_not_know 0.735 10490
have_no_idea_what 0.697 89292
do_not_know_what 0.673 36350
do_not_realize 0.657 86319
be_not_sure 0.649 58331
I_have_no_idea 0.649 27343
do_not_know_that 0.644 56055
do_not_know_about 0.622 58593
be_not_aware_of 0.621 45005
never_know 0.616 62448
do_not_care 0.604 42198
they_do_not_know 0.600 52548
know_nothing_about 0.596 84943
nobody_know 0.595 74533
not_know 0.595 17980
I_do_not_know 0.592 6146
even_know 0.589 96702
no_one_know 0.588 42689
do_not_think 0.577 24494
be_unaware_of 0.576 36659
he_do_not_know 0.576 53219
do_not_understand 0.575 21094
really_know 0.575 90488
want_to_know 0.567 35647
I_never_know 0.565 87759