context: We believe that Sandra grabbed the milk. It is highly unlikely that Brian is a lion. It is likely that Lily is yellow.
hypothesis: Chances are about even that either Lily is yellow, or Sandra grabbed the milk.
valid_hypothesis: Chances are about even that either Lily is yellow, or Sandra grabbed the milk.
invalid_hypothesis: There is almost no chance that either Lily is yellow, or Sandra grabbed the milk.
hypothesis_assertion: Either Lily is yellow, or Sandra grabbed the milk.