SimilarityRank
current_challenge 0.756 50315
the_challenge_ahead 0.663 59436
new_challenge 0.646 18398
future_trend 0.645 80161
major_challenge 0.626 94021
challenge_face 0.626 32972
emerge_issue 0.612 75696
global_challenge 0.610 41446
the_challenge_face 0.603 22143
future_development 0.603 27146
these_challenge 0.601 16957
future 0.589 177
challenge 0.588 222
specific_challenge 0.585 92340
future_opportunity 0.585 93859
change_world 0.585 30814
the_major_challenge 0.584 66525
the_key_challenge 0.580 74955
future_direction 0.579 93309
the_challenge_pose_by 0.575 96527
change_environment 0.570 46370
challenge_relate_to 0.568 80453
common_challenge 0.564 99524
current_problem 0.556 54692
current_development 0.553 60926