SimilarityRank
challenge_relate_to 0.772 80453
issue_associate_with 0.748 59758
the_unique_challenge 0.696 90230
challenge_face 0.696 32972
problem_associate_with 0.686 33102
specific_challenge 0.678 92340
challenge_face_by 0.671 66867
the_challenge_face 0.658 22143
the_major_challenge 0.643 66525
the_challenge_pose_by 0.640 96527
many_challenge 0.636 34197
the_challenge_face_by 0.626 42818
issue_surround 0.625 28254
technical_challenge 0.623 52969
the_key_challenge 0.620 74955
common_challenge 0.617 99524
current_challenge 0.615 50315
major_challenge 0.611 94021
issue_relate_to 0.603 11960
these_challenge 0.602 16957
risk_associate_with 0.601 23268
various_challenge 0.596 99907
challenge_they_face 0.592 44286
issue_around 0.592 31128
the_main_challenge 0.586 52376