SimilarityRank
the_big_problem 0.799 25566
major_problem 0.768 34279
a_big_problem 0.737 88869
big_issue 0.734 68319
problem 0.718 185
the_big_issue 0.702 32640
problem_with 0.699 3733
big_challenge 0.696 46944
serious_problem 0.684 48894
another_problem 0.672 52607
the_real_problem 0.661 29156
the_main_problem 0.634 46787
problem_face 0.627 83674
real_problem 0.614 71844
the_big_challenge 0.590 19695
major_issue 0.581 31720
a_problem_with 0.574 19265
trouble_with 0.572 27905
major_challenge 0.571 94021
problem_we_face 0.570 98636
great_challenge 0.564 59535
the_main_problem_be 0.558 96132
another_issue 0.553 27258
problem_with_this 0.547 51399
serious_issue 0.546 86503