Context: In Canada, the term "football" may refer to Canadian football and American football collectively, or to either sport specifically, depending on context. The two sports have shared origins and are closely related but have significant differences. In particular, Canadian football has 12 players on the field per team rather than 11; the field is roughly 10 yards wider, and 10 yards longer between end-zones that are themselves 10 yards deeper; and a team has only three downs to gain 10 yards, which results in less offensive rushing than in the American game. In the Canadian game all players on the defending team, when a down begins, must be at least 1 yard from the line of scrimmage. (The American game has a similar "neutral zone" but it is only the length of the football.)

Question: Which North American version of football calls for 12 player per side on the field?
Answer: Canadian

Question: How many yards wider is a Canadian football field than an American football field?
Answer: 10

Question: Which version of North American football has smaller end zones?
Answer: American

Question: How many downs does a team have to advance ten yards in Canadian football?
Answer: three

Question: How far away from the line of scrimmage must Canadian football defenders be?
Answer: 1 yard

Question: In America what term is used for both Canadian foobal and Americam football
Answer: Unanswerable

Question: An American football field is how much wider than a Canadian football field?
Answer: Unanswerable

Question: Canadian and American football have the same number of what on the field?
Answer: Unanswerable

Question: American football players have three downs to do what?
Answer: Unanswerable

Question: The American football defenders must be one you are from what?
Answer: Unanswerable

Question: Which version of North American football has a smaller football?
Answer: Unanswerable

Question: What has shared players and is closely related with differences?
Answer: Unanswerable

Question: In American football how many downs are needed to gain 10 yards?
Answer: Unanswerable

Question: When a down begins, how far away must the American defending team be?
Answer: Unanswerable

Question: What causes the American game to have less offensive rushing?
Answer: Unanswerable