YOU SAID:
hotdog are a dog after a walk its a fact.
INTO JAPANESE
ホットドッグは散歩後の犬です。
BACK INTO ENGLISH
A hot dog is a dog after a walk.
INTO JAPANESE
ホットドッグは、散歩後の犬です。
BACK INTO ENGLISH
A hot dog is a dog after a walk.
That didn't even make that much sense in English.