context: Chances are slight that Sandra dropped the milk. There is little chance that Mary grabbed the milk. We doubt that Lily is yellow.
hypothesis: It is likely that either Lily is yellow, or Sandra dropped the milk.
valid_hypothesis: It is probably not the case that either Lily is yellow, or Sandra dropped the milk.
invalid_hypothesis: It is likely that either Lily is yellow, or Sandra dropped the milk.
hypothesis_assertion: Either Lily is yellow, or Sandra dropped the milk.