context: It is almost certain that Mary grabbed the milk. It is probably the case that Greg is yellow. Chances are about even that Lily is a lion.
hypothesis: It is certain that lily is a lion, or Mary grabbed the milk.
valid_hypothesis: It is certain that lily is a lion, or Mary grabbed the milk.
invalid_hypothesis: Chances are slight that lily is a lion, or Mary grabbed the milk.
hypothesis_assertion: Lily is a lion, or Mary grabbed the milk.