context: There is little chance that Gertrude is a mouse. We believe that Julius is yellow. Chances are about even that John picked up the milk.
hypothesis: Chances are slight that gertrude is a mouse, and Julius is yellow.
valid_hypothesis: Chances are slight that gertrude is a mouse, and Julius is yellow.
invalid_hypothesis: It is probable that gertrude is a mouse, and Julius is yellow.
hypothesis_assertion: Gertrude is a mouse, and Julius is yellow.