returned in case there is no argument or the argument is not a valid
Final Hurdle hintTo groom.
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Пьяный турист нанес тяжелую травму участвовавшей в Олимпиаде сноубордистке20:38
These exist in confusables.txt because they map to the same abstract character under NFKC decomposition. The map is semantically correct. But from a visual perspective, these are false positives: a human would never confuse Mathematical Fraktur l with plain l.