YOU SAID:

onyx is not swaggy for I have stolen their swag

INTO JAPANESE

私が彼らの盗品を盗んだので、オニキスは盗品ではありません

BACK INTO ENGLISH

Onyx is not stolen because I stole their stolen goods

INTO JAPANESE

オニキスは盗品を盗んだので盗まれません

BACK INTO ENGLISH

Onyx stole stolen goods so it won't be stolen

INTO JAPANESE

オニキスは盗品を盗んだので盗まれません

BACK INTO ENGLISH

Onyx stole stolen goods so it won't be stolen