context: It is probable that John put down the apple. It is almost certain that Julius is yellow. There is a better than even chance that Sandra left the apple. There is little chance that if Sandra left the apple, or Julius is yellow, then Bernhard is a lion. It is probable that if either Sandra left the apple, or Julius is yellow, then Lily is a rhino. It is almost certain that if Sandra left the apple, and Julius is yellow, then Greg is gray.
hypothesis: Chances are about even that either John put down the apple, or Greg is gray.
valid_hypothesis: Chances are about even that either John put down the apple, or Greg is gray.
invalid_hypothesis: There is almost no chance that either John put down the apple, or Greg is gray.
hypothesis_assertion: Either John put down the apple, or Greg is gray.