YOU SAID:
billy is my dad. my dad is billy
INTO JAPANESE
ビリーは私の父です。私の父はビリーです
BACK INTO ENGLISH
Billy is my father. My father is Billy
INTO JAPANESE
ビリーは私の父です。私の父はビリーです
BACK INTO ENGLISH
Billy is my father. My father is Billy
You've done this before, haven't you.