context: It is highly likely that Lily is a rhino. There is a better than even chance that Julius is a lion. It is highly unlikely that Greg is a swan.
hypothesis: Chances are about even that julius is a lion, and Lily is a rhino.
valid_hypothesis: Chances are about even that julius is a lion, and Lily is a rhino.
invalid_hypothesis: There is almost no chance that julius is a lion, and Lily is a rhino.
hypothesis_assertion: Julius is a lion, and Lily is a rhino.