are you certain that it wasn't included in the training data? I saw someone do this awhile ago with a low resource language (I think it might've been Abkhaz?)

are you certain that it wasn't included in the training data? I saw someone do this awhile ago with a low resource language (I think it might've been Abkhaz?) with seemingly-incredible results, and eventually everyone came to understood that, even though it wasn't officially supported, Abkhaz materials had been in the training data