context: It is highly unlikely that Greg is a frog. There is little chance that Lily is a swan. We believe that Bernhard is yellow. It is highly likely that if Bernhard is yellow, or Greg is a frog, then Sandra grabbed the milk. There is a very good chance that if Lily is a swan, and Greg is a frog, then Fred went to the kitchen. It is certain that if either Lily is a swan, or Greg is a frog, then Brian is gray.
hypothesis: Chances are slight that bernhard is yellow, or Greg is a frog.
valid_hypothesis: We believe that bernhard is yellow, or Greg is a frog.
invalid_hypothesis: Chances are slight that bernhard is yellow, or Greg is a frog.
hypothesis_assertion: Bernhard is yellow, or Greg is a frog.