context: It is impossible that Lily is a rhino. It is probably not the case that Brian is green. It is probably not the case that John got the milk there.
hypothesis: It is likely that either Brian is green, or Lily is a rhino.
valid_hypothesis: It is probably not the case that either Brian is green, or Lily is a rhino.
invalid_hypothesis: It is likely that either Brian is green, or Lily is a rhino.
hypothesis_assertion: Either Brian is green, or Lily is a rhino.