context: It is highly unlikely that Jessica is a mouse. Chances are about even that John left the milk. It is highly unlikely that Mary moved to the office. It is almost certain that if either John left the milk, or Mary moved to the office, then Julius is white. Chances are slight that if Mary moved to the office, and Jessica is a mouse, then Brian is yellow. It is likely that if either Mary moved to the office, or Jessica is a mouse, then Bernhard is a lion.
hypothesis: Chances are slight that jessica is a mouse, or Mary moved to the office.
valid_hypothesis: Chances are slight that jessica is a mouse, or Mary moved to the office.
invalid_hypothesis: There is a very good chance that jessica is a mouse, or Mary moved to the office.
hypothesis_assertion: Jessica is a mouse, or Mary moved to the office.