SimilarityRank
this_problem 0.859 4064
such_problem 0.842 41208
problem 0.787 185
of_these_problem 0.763 78749
these_issue 0.744 8191
these_challenge 0.687 16957
specific_problem 0.673 57049
these_difficulty 0.669 80470
this_dilemma 0.667 84765
serious_problem 0.667 48894
this_situation 0.651 9150
current_problem 0.643 54692
related_problem 0.640 65450
various_problem 0.635 94278
problem_relate_to 0.633 33222
problem_cause_by 0.631 59711
the_same_problem 0.627 37541
of_these_issue 0.627 48734
major_problem 0.626 34279
solve_them 0.625 89467
problem_associate_with 0.625 33102
problem_we_face 0.623 98636
security_problem 0.615 62807
complex_problem 0.613 48012
this_issue 0.613 3019