| Similarity | Rank | |
|---|---|---|
| critical_issue | 0.691 | 30887 |
| emerge_trend | 0.686 | 74221 |
| policy_issue | 0.643 | 26511 |
| key_issue | 0.633 | 15544 |
| relevant_issue | 0.629 | 76908 |
| current_issue | 0.617 | 25696 |
| future_challenge | 0.612 | 41206 |
| issue_face | 0.599 | 32083 |
| address_issue | 0.596 | 78317 |
| major_issue | 0.593 | 31720 |
| future_trend | 0.592 | 80161 |
| important_issue | 0.590 | 26970 |
| contemporary_issue | 0.588 | 75349 |
| issue_affect | 0.587 | 41862 |
| management_issue | 0.586 | 61850 |
| issue_relate_to | 0.586 | 11960 |
| potential_solution | 0.583 | 72687 |
| current_challenge | 0.582 | 50315 |
| current_issue_in | 0.579 | 90218 |
| policy_development | 0.576 | 20131 |
| key_development | 0.576 | 92049 |
| specific_issue | 0.571 | 39698 |
| global_challenge | 0.568 | 41446 |
| challenge_face | 0.567 | 32972 |
| research_priority | 0.565 | 89871 |