context: Chances are about even that Bernhard is white. It is probable that Brian is green. We doubt that Mary went to the bedroom.
hypothesis: Chances are about even that either Brian is green, or Bernhard is white.
valid_hypothesis: Chances are about even that either Brian is green, or Bernhard is white.
invalid_hypothesis: It is almost certain that either Brian is green, or Bernhard is white.
hypothesis_assertion: Either Brian is green, or Bernhard is white.