| Similarity | Rank | |
|---|---|---|
| be_unclear | 0.876 | 18231 |
| not_clear | 0.707 | 86587 |
| remain_unclear_. | 0.704 | 61353 |
| be_unknown | 0.692 | 8723 |
| be_not_know | 0.692 | 21842 |
| it_be_not_clear | 0.668 | 43210 |
| be_uncertain | 0.662 | 25526 |
| remain_unknown_. | 0.640 | 83257 |
| it_be_unclear | 0.639 | 96477 |
| remain_unknown | 0.637 | 95834 |
| unclear | 0.634 | 31853 |
| remain_a_mystery | 0.610 | 70041 |
| be_ambiguous | 0.609 | 58935 |
| it_be_unknown | 0.598 | 73475 |
| we_do_not_know | 0.579 | 21798 |
| do_not_specify | 0.578 | 99897 |
| do_not_explain | 0.573 | 94495 |
| be_questionable | 0.562 | 39845 |
| it_be_not_clear_whether | 0.554 | 72966 |
| be_not_specify | 0.550 | 72855 |
| do_not_appear_to_be | 0.536 | 39770 |
| to_clarify | 0.534 | 17380 |
| nobody_know | 0.533 | 74533 |
| it_be_hard_to_say | 0.532 | 62167 |
| be_not_mention | 0.530 | 39015 |