context: It is impossible that Mary went to the bedroom. There is almost no chance that Bernhard is gray. It is impossible that Greg is yellow. There is a very good chance that if either Mary went to the bedroom, or Greg is yellow, then Bill dropped the milk. It is impossible that if either Mary went to the bedroom, or Greg is yellow, then John moved to the garden. There is almost no chance that if Bernhard is gray, or Greg is yellow, then Brian is a swan.
hypothesis: There is almost no chance that either Bernhard is gray, or John moved to the garden.
valid_hypothesis: There is almost no chance that either Bernhard is gray, or John moved to the garden.
invalid_hypothesis: It is certain that either Bernhard is gray, or John moved to the garden.
hypothesis_assertion: Either Bernhard is gray, or John moved to the garden.