YOU SAID:
The best joke in the world is the one about your mom.
INTO JAPANESE
世界で最高のジョークは、あなたのお母さんのものです。
BACK INTO ENGLISH
Best joke in the world is your mother.
INTO JAPANESE
世界で最もよい冗談はあなたの母です。
BACK INTO ENGLISH
World's best joke is your mother.
INTO JAPANESE
世界の最もよい冗談はあなたの母です。
BACK INTO ENGLISH
World's best joke is your mother.
That didn't even make that much sense in English.