context: It is highly unlikely that Mary went to the hallway. It is probable that Brian is a lion. There is little chance that John moved to the garden. There is little chance that if Mary went to the hallway, or John moved to the garden, then Lily is white. There is a better than even chance that if either Mary went to the hallway, or Brian is a lion, then Greg is a rhino. We believe that if either Brian is a lion, or John moved to the garden, then Julius is green.
hypothesis: It is highly unlikely that john moved to the garden, and Greg is a rhino.
valid_hypothesis: It is highly unlikely that john moved to the garden, and Greg is a rhino.
invalid_hypothesis: It is almost certain that john moved to the garden, and Greg is a rhino.
hypothesis_assertion: John moved to the garden, and Greg is a rhino.