> kochira wa yakusoku no houshuu desu
You blurred yakusoku, everybody knows that, but houshuu is much rarer word, should have blurred that
> kochira wa yakusoku no houshuu desu
You blurred yakusoku, everybody knows that, but houshuu is much rarer word, should have blurred that
It's the 500 most common words in that specific show rather than some broader corpus, so there's bound to be some words that happen to be unusually common or rare.