response: I'm not sure. It's a type of sausage, though.
original_response: Yes, it is a sausage sandwich of sorts, so I think it was German pork at first.
history: Look, hotdogs are my favourite! Oh, how nice! They're also called frankfurters. Do you like yours grilled or steamed? Grilled! I also like them steamed, though. Do you also like variations on hot dogs, like corn dogs or pigs in a blanket? Yes, I do! Hey, do you know where the hot dog originated? I know that they were originally imported from Germany and then became popular in the US. Oh cool! Were they made of pork?
knowledge: This type of sausage was culturally imported from Germany and popularized in the United States, where it became a working-class street food sold at hot dog stands and carts.