SimilarityRank
I_do_not_know 0.784 6146
I_be_not_sure 0.750 10313
I_never_know 0.748 87759
I_have_no_idea_what 0.733 52632
I_do_not_know_what 0.680 21576
I_do_not_know_that 0.672 38924
have_no_idea 0.649 68416
I_can_not_say 0.647 50257
but_I_be_not_sure 0.640 25639
I_have_no_idea_that 0.636 90874
I_do_not_remember 0.634 35346
I_do_not_understand 0.634 42140
I_do_not_know_about 0.630 48476
it_be_hard_to_say 0.627 62167
I_be_not_sure_what 0.627 29674
I_wonder 0.625 25343
I_can_not_remember 0.623 46389
I_know_what 0.614 37098
I_do_not_care 0.612 53361
no_one_know 0.611 42689
curious_as 0.609 87118
I_be_amaze 0.606 88466
nobody_know 0.602 74533
I_do_not_know_what_to 0.602 44226
I_can_not_believe 0.602 54718