SimilarityRank
I_do_not_know 0.681 6146
I_do_not_think_there_be 0.668 94961
I_do_not_know_about 0.662 48476
I_do_not_know_that 0.642 38924
I_can_not_find 0.630 56804
I_do_not_see 0.625 17114
there_do_not_seem_to_be 0.617 60112
I_be_aware_of 0.616 40706
I_do_not_recall 0.613 80405
I_be_not_sure 0.613 10313
I_have_no_idea 0.599 27343
I_do_not_believe 0.597 36363
I_do_not_find 0.597 65738
I_have_not_see 0.591 28718
I_be_not_familiar_with 0.589 95241
,_but_I_have_not 0.583 38969
to_my_knowledge 0.582 55296
there_have_not 0.581 21824
I_do_not_remember 0.576 35346
I_have_not 0.574 7170
I_have_never_hear_of 0.573 54454
I_could_not_find 0.572 68628
I_do_not_think 0.567 7324
there_be_not 0.567 8987
but_there_be_not 0.565 49551