| Similarity | Rank | |
|---|---|---|
| compulsory | 0.797 | 17415 |
| be_mandatory | 0.710 | 18140 |
| be_compulsory | 0.661 | 49804 |
| Mandatory | 0.656 | 99532 |
| be_mandatory_for | 0.647 | 51313 |
| required | 0.645 | 5608 |
| obligatory | 0.639 | 20984 |
| optional | 0.626 | 6363 |
| an_optional | 0.565 | 27198 |
| mandate_by | 0.554 | 53169 |
| requirement_for | 0.552 | 3491 |
| requirement | 0.546 | 918 |
| voluntary | 0.546 | 6529 |
| mandate_that | 0.543 | 25728 |
| it_be_mandatory | 0.543 | 93758 |
| be_optional | 0.539 | 16185 |
| strict | 0.530 | 10958 |
| a_voluntary | 0.526 | 34699 |
| not_require | 0.522 | 26621 |
| more_stringent | 0.520 | 92552 |
| stringent | 0.518 | 42883 |
| a_minimum | 0.517 | 23588 |
| exemption_from | 0.516 | 46399 |
| an_approve | 0.514 | 30644 |
| specified | 0.511 | 14645 |