context: It is likely that Sandra grabbed the milk. It is probably not the case that Julius is a rhino. It is probable that Greg is gray.
hypothesis: There is a better than even chance that either Julius is a rhino, or Greg is gray.
valid_hypothesis: There is a better than even chance that either Julius is a rhino, or Greg is gray.
invalid_hypothesis: There is little chance that either Julius is a rhino, or Greg is gray.
hypothesis_assertion: Either Julius is a rhino, or Greg is gray.