SimilarityRank
hard 0.791 1452
really_hard 0.788 64966
be_very_hard 0.715 91214
very_difficult 0.650 34974
harder 0.644 27866
hard_as 0.621 79740
difficult 0.619 2515
as_hard 0.614 19691
so_hard 0.608 47049
be_tough 0.586 11759
get_hard 0.574 65510
be_very_difficult 0.572 37607
tough 0.567 4367
not_easy 0.556 65092
a_difficult 0.553 12053
rough 0.543 7325
too_hard 0.541 70675
be_a_tough 0.537 36164
Hard 0.522 23361
painful 0.514 7134
it_be_difficult 0.513 31149
be_extremely_difficult 0.511 97037
extremely_difficult 0.511 93625
so_bad 0.505 49015
how_hard 0.505 85048