context: A group of men are riding a moving walkway.
hypothesis: It is probable that a groups of men at the airport are riding a moving walkway.
valid_hypothesis: It is unlikely that a groups of men at the airport are riding a moving walkway.
invalid_hypothesis: It is probable that a groups of men at the airport are riding a moving walkway.
hypothesis_assertion: A groups of men at the airport are riding a moving walkway.