YOU SAID:
Jasper is the best doggy in the whole wide world.
INTO JAPANESE
ジャスパーは全世界で最高のワンコです。
BACK INTO ENGLISH
Jasper is the best dog in the world.
INTO JAPANESE
ジャスパーは世界最高の犬です。
BACK INTO ENGLISH
Jasper is the best dog in the world.
That didn't even make that much sense in English.