SimilarityRank
challenge_we_face 0.716 47011
that_we_face 0.686 59337
problem 0.637 185
the_real_problem 0.627 29156
these_problem 0.623 12503
current_problem 0.616 54692
the_problem_face 0.615 66079
global_problem 0.613 66690
complex_problem 0.600 48012
face_today 0.582 76202
we_face 0.581 17796
economic_problem 0.578 38699
real_problem 0.578 71844
problem_face 0.578 83674
major_problem 0.574 34279
big_problem 0.570 39556
solve_them 0.570 89467
the_root_cause 0.567 46795
these_challenge 0.563 16957
the_big_problem 0.562 25566
this_problem 0.561 4064
social_problem 0.561 19159
global_challenge 0.561 41446
political_problem 0.560 63987
big_issue 0.559 68319