context: There is little chance that Julius is gray. Chances are slight that Lily is gray. It is probably not the case that Brian is white.
hypothesis: It is probably not the case that either Brian is white, or Lily is gray.
valid_hypothesis: It is probably not the case that either Brian is white, or Lily is gray.
invalid_hypothesis: There is a very good chance that either Brian is white, or Lily is gray.
hypothesis_assertion: Either Brian is white, or Lily is gray.