YOU SAID:

i ate my friends dog cause it was chocolate

INTO JAPANESE

私はチョコレートだった私の友人の犬の原因を食べた

BACK INTO ENGLISH

I ate the cause of my friend's dog which was chocolate

INTO JAPANESE

私はチョコレートだった私の友人の犬の原因を食べた

BACK INTO ENGLISH

I ate the cause of my friend's dog which was chocolate