| русский | rus-000 |
| некорректная задача | |
| беларуская | bel-000 | некарэктная задача |
| English | eng-000 | ill-conditioned formulated problem |
| English | eng-000 | ill-conditioned problem |
| English | eng-000 | ill-defined problem |
| English | eng-000 | ill-posed problem |
| English | eng-000 | incorrectly formulated problem |