context: It is impossible that Brian is white. It is highly unlikely that Lily is a lion. It is highly unlikely that Sandra got the football.
hypothesis: There is a very good chance that lily is a lion, or Brian is white.
valid_hypothesis: It is highly unlikely that lily is a lion, or Brian is white.
invalid_hypothesis: There is a very good chance that lily is a lion, or Brian is white.
hypothesis_assertion: Lily is a lion, or Brian is white.