context: It is probably not the case that Julie is in the bedroom. We believe that Bernhard is a lion. It is improbable that Mary dropped the milk. It is probably not the case that if Julie is in the bedroom, and Mary dropped the milk, then Bill went to the hallway. Chances are slight that if Bernhard is a lion, or Julie is in the bedroom, then John discarded the milk. There is almost no chance that if either Julie is in the bedroom, or Mary dropped the milk, then Greg is a frog.
hypothesis: There is almost no chance that either Bill went to the hallway, or Greg is a frog.
valid_hypothesis: There is almost no chance that either Bill went to the hallway, or Greg is a frog.
invalid_hypothesis: It is highly likely that either Bill went to the hallway, or Greg is a frog.
hypothesis_assertion: Either Bill went to the hallway, or Greg is a frog.