context: It is certain that Julius is a lion. There is little chance that Lily is a rhino. It is impossible that Greg is gray.
hypothesis: Chances are slight that julius is a lion, and Lily is a rhino.
valid_hypothesis: Chances are slight that julius is a lion, and Lily is a rhino.
invalid_hypothesis: There is a very good chance that julius is a lion, and Lily is a rhino.
hypothesis_assertion: Julius is a lion, and Lily is a rhino.