context: We doubt that Julius is a lion. It is improbable that Lily is a rhino. It is highly likely that Mary grabbed the milk.
hypothesis: There is almost no chance that julius is a lion, and Lily is a rhino.
valid_hypothesis: There is almost no chance that julius is a lion, and Lily is a rhino.
invalid_hypothesis: It is certain that julius is a lion, and Lily is a rhino.
hypothesis_assertion: Julius is a lion, and Lily is a rhino.