context: It is highly unlikely that Mary went to the hallway. It is impossible that Julius is gray. It is probable that Gertrude is a mouse. It is probably not the case that if Gertrude is a mouse, or Mary went to the hallway, then Bernhard is white. There is almost no chance that if either Gertrude is a mouse, or Julius is gray, then Sandra left the apple. There is almost no chance that if either Julius is gray, or Mary went to the hallway, then John picked up the milk.
hypothesis: We believe that either John picked up the milk, or Mary went to the hallway.
valid_hypothesis: It is highly unlikely that either John picked up the milk, or Mary went to the hallway.
invalid_hypothesis: We believe that either John picked up the milk, or Mary went to the hallway.
hypothesis_assertion: Either John picked up the milk, or Mary went to the hallway.