SimilarityRank
the_threat_pose_by 0.643 82481
challenge_associate_with 0.640 61107
the_challenge_face 0.627 22143
these_challenge 0.619 16957
global_challenge 0.608 41446
the_challenge_face_by 0.599 42818
current_challenge 0.590 50315
pose_by 0.588 37371
various_challenge 0.581 99907
challenge_relate_to 0.580 80453
the_challenge_ahead 0.579 59436
challenge 0.576 222
future_challenge 0.575 41206
challenge_face 0.570 32972
change_nature_of 0.569 49268
the_major_challenge 0.568 66525
the_unique_challenge 0.566 90230
specific_challenge 0.564 92340
that_we_face 0.555 59337
challenge_face_by 0.555 66867
new_challenge 0.554 18398
security_challenge 0.552 64605
challenge_we_face 0.544 47011
the_complexity_of 0.544 8684
the_main_challenge 0.542 52376