YOU SAID:
sebastian is fat fat fat fat fat fat fat fat fat fat fat fat
INTO JAPANESE
セバスチャンは脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪です。
BACK INTO ENGLISH
Sebastian is a fatty fat fat fat fat fat fat fat fat fat fat fat.
INTO JAPANESE
セバスチャンは、脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪脂肪です。
BACK INTO ENGLISH
Sebastian is a fatty fat fat fat fat fat fat fat fat fat fat fat.
That didn't even make that much sense in English.