In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

Q: passage: The Grand Canyon of northern Arizona in the United States, with an average depth of 1,600 m (one mile) and a volume of 4.17 trillion cubic metres, is one of the world's largest canyons. It was among the 28 finalists of the New7Wonders of Nature worldwide poll. (Some referred to it as one of the 7 natural wonders of the world.) Copper Canyon in Chihuahua, Mexico is deeper and longer than the Grand Canyon.
 question: is the grand canyon the biggest canyon in the world?

A: No
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Q: passage: The Swiss army has long been a militia trained and structured to rapidly respond against foreign aggression. Swiss males grow up expecting to undergo basic military training, usually at age 20 in the recruit school, the basic-training camp, after which Swiss men remain part of the ``militia'' in reserve capacity until age 30 (age 34 for officers).
 question: does switzerland train every citizen to use a gun?

A: No
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Q: passage: The dairy cow will produce large amounts of milk in its lifetime. Production levels peak at around 40 to 60 days after calving. Production declines steadily afterwards until milking is stopped at about 10 months. The cow is ``dried off'' for about sixty days before calving again. Within a 12 to 14-month inter-calving cycle, the milking period is about 305 days or 10 months long. Among many variables, certain breeds produce more milk than others within a range of around 6,800 to 17,000 kg (15,000 to 37,500 lbs) of milk per year.
 question: do cows have to stay pregnant to produce milk?

A:
No
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