context: It is highly unlikely that Bill discarded the milk. We doubt that Lily is gray. There is a better than even chance that Brian is a lion.
hypothesis: There is little chance that brian is a lion, or Lily is gray.
valid_hypothesis: It is likely that brian is a lion, or Lily is gray.
invalid_hypothesis: There is little chance that brian is a lion, or Lily is gray.
hypothesis_assertion: Brian is a lion, or Lily is gray.