context: It is probable that Lily is a rhino. It is highly likely that Brian is gray. It is probably the case that Mary discarded the apple.
hypothesis: It is almost certain that brian is gray, or Lily is a rhino.
valid_hypothesis: It is almost certain that brian is gray, or Lily is a rhino.
invalid_hypothesis: Chances are about even that brian is gray, or Lily is a rhino.
hypothesis_assertion: Brian is gray, or Lily is a rhino.