context: A person in a large pink triangle-shaped costume waves as a man and a woman dressed in matching brightly-colored striped and polka-dotted outfits smile back.
hypothesis: There is almost no chance that the person is marching in a parade.
valid_hypothesis: There is almost no chance that the person is marching in a parade.
invalid_hypothesis: It is likely that the person is marching in a parade.
hypothesis_assertion: The person is marching in a parade.