context: Two men wearing dingy blue clothing are doing their job on a boat.
hypothesis: There is almost no chance that two men are on a boat going to catch fish.
valid_hypothesis: There is a better than even chance that two men are on a boat going to catch fish.
invalid_hypothesis: There is almost no chance that two men are on a boat going to catch fish.
hypothesis_assertion: Two men are on a boat going to catch fish.