context: We believe that Sandra grabbed the milk. It is likely that Bernhard is a swan. It is highly unlikely that Mary picked up the apple. It is probably the case that if either Sandra grabbed the milk, or Mary picked up the apple, then Brian is a frog. There is little chance that if Sandra grabbed the milk, and Mary picked up the apple, then John went to the hallway. There is almost no chance that if Bernhard is a swan, or Sandra grabbed the milk, then Julius is green.
hypothesis: It is probably the case that john went to the hallway, or Mary picked up the apple.
valid_hypothesis: It is highly unlikely that john went to the hallway, or Mary picked up the apple.
invalid_hypothesis: It is probably the case that john went to the hallway, or Mary picked up the apple.
hypothesis_assertion: John went to the hallway, or Mary picked up the apple.