SimilarityRank
challenge_face_by 0.838 66867
the_challenge_face 0.834 22143
issue_face 0.808 32083
problem_face 0.774 83674
the_challenge_face_by 0.768 42818
issue_face_by 0.728 88072
current_challenge 0.699 50315
challenge_associate_with 0.696 61107
challenge_they_face 0.685 44286
challenge_relate_to 0.674 80453
the_problem_face 0.673 66079
common_challenge 0.672 99524
specific_challenge 0.672 92340
the_key_challenge 0.667 74955
issue_affect 0.663 41862
many_challenge 0.660 34197
face_today 0.655 76202
economic_challenge 0.655 92616
the_unique_challenge 0.654 90230
the_major_challenge 0.647 66525
major_challenge 0.641 94021
the_problem_face_by 0.637 87703
future_challenge 0.626 41206
various_challenge 0.626 99907
key_issue 0.622 15544