YOU SAID:
my dog harley is the best dog in the world
INTO JAPANESE
私の犬ハーレーは世界一の犬です
BACK INTO ENGLISH
My dog Harley is the best dog in the world
INTO JAPANESE
私の犬のハーレーは世界一の犬です
BACK INTO ENGLISH
My dog Harley is the best dog in the world
That didn't even make that much sense in English.