Assertion: american football | /r/Synonym | football
Facets:
value: in the united states
type: LOCATION
value: because of its origin
type: CAUSE
Source sentences:
text: To find the answer to why American Football is called football requires us to delve into the history of the sport and look at where it originated and what from.
text: In the United States, American football is referred to as "football".
text: American football is called football because of its origin.
text: American football (referred to as football in the United States and also known as gridiron) is a sport played by two teams of eleven players on a rectangular field with goalposts at each end.