I get errors like this from Google Translate all the time. I assume it's because the engine is fully ML (which seems to be good at getting larger grammatical st

I get errors like this from Google Translate all the time. I assume it's because the engine is fully ML (which seems to be good at getting larger grammatical structures but sometimes mistakes individual words), as opposed to some kind of expert system approach (which can easily look up individual words but tends to make soup out of them). As for the error you saw, here's a guess: a million yen is ten thousand dollars, so an ML agent trained on JP/EN text that discusses money might see those numbers crop up a lot in close proximity.