context: There is a very good chance that Julius is a rhino. It is impossible that Greg is a swan. It is improbable that Lily is white.
hypothesis: There is a very good chance that julius is a rhino, or Greg is a swan.
valid_hypothesis: There is a very good chance that julius is a rhino, or Greg is a swan.
invalid_hypothesis: It is probably not the case that julius is a rhino, or Greg is a swan.
hypothesis_assertion: Julius is a rhino, or Greg is a swan.