SimilarityRank
as_far_as_I_know_, 0.795 46909
as_far_as_I_know 0.750 59141
as_far_as_I_can_tell 0.671 51528
To_our_knowledge 0.644 85097
of_my_knowledge 0.625 86146
have_ever_be 0.583 41217
I_be_not_aware_of 0.582 49915
at_least_not 0.575 27286
–_not_even 0.548 94587
until_very_recently 0.547 89480
certainly_not 0.544 28189
until_now 0.539 7206
not_even 0.535 6227
have_ever 0.528 24235
,_but_I_have_not 0.527 38969
and_certainly_not 0.527 38163
nor_any 0.523 46858
from_what_I_understand 0.522 97893
I_do_not_recall 0.515 80405
nor 0.511 1031
but_so_far 0.510 27083
there_have_not 0.508 21824
mind_you_, 0.508 34997
I_do_not_know_that 0.505 38924
I_have_not_see 0.503 28718