| Similarity | Rank | |
|---|---|---|
| the_major_challenge | 0.766 | 66525 |
| big_challenge | 0.728 | 46944 |
| great_challenge | 0.725 | 59535 |
| the_main_challenge | 0.704 | 52376 |
| many_challenge | 0.699 | 34197 |
| the_great_challenge | 0.689 | 32862 |
| the_key_challenge | 0.680 | 74955 |
| the_big_challenge | 0.670 | 19695 |
| challenge | 0.647 | 222 |
| major_problem | 0.642 | 34279 |
| challenge_face | 0.641 | 32972 |
| current_challenge | 0.640 | 50315 |
| future_challenge | 0.626 | 41206 |
| face_many_challenge | 0.623 | 78198 |
| another_challenge | 0.620 | 48760 |
| various_challenge | 0.617 | 99907 |
| challenge_associate_with | 0.611 | 61107 |
| challenge_relate_to | 0.609 | 80453 |
| specific_challenge | 0.607 | 92340 |
| these_challenge | 0.595 | 16957 |
| new_challenge | 0.590 | 18398 |
| common_challenge | 0.587 | 99524 |
| major_concern | 0.587 | 70286 |
| problem_face | 0.584 | 83674 |
| that_we_face | 0.574 | 59337 |