context: Chances are slight that Lily is a lion. It is impossible that Julius is green. It is likely that Brian is a swan.
hypothesis: It is probably the case that either Lily is a lion, or Brian is a swan.
valid_hypothesis: It is probably the case that either Lily is a lion, or Brian is a swan.
invalid_hypothesis: It is highly unlikely that either Lily is a lion, or Brian is a swan.
hypothesis_assertion: Either Lily is a lion, or Brian is a swan.