response: I see, so you like gridiron football, as it is called that as well.
original_response: I quite like American football or gridiron as well.
history: I love american football, it is so great!
knowledge: American football, referred to as football in the United States and Canada, and also known as gridiron football or simply gridiron, is a team sport played by two teams of eleven players on a rectangular field with goalposts at each end.