context: A man with a light blue t-shirt outside in the open wearing red ear protection while firing a gun.
hypothesis: It is certain that a man is signaling the start of a race.
valid_hypothesis: There is almost no chance that a man is signaling the start of a race.
invalid_hypothesis: It is certain that a man is signaling the start of a race.
hypothesis_assertion: A man is signaling the start of a race.