context: We doubt that Bernhard is yellow. It is probably not the case that Brian is white. It is highly likely that Mary moved to the office. It is certain that if either Brian is white, or Mary moved to the office, then Greg is a rhino. It is probably not the case that if Brian is white, or Bernhard is yellow, then John picked up the milk. It is highly unlikely that if Brian is white, and Mary moved to the office, then Julius is a swan.
hypothesis: Chances are about even that bernhard is yellow, or Brian is white.
valid_hypothesis: Chances are about even that bernhard is yellow, or Brian is white.
invalid_hypothesis: It is certain that bernhard is yellow, or Brian is white.
hypothesis_assertion: Bernhard is yellow, or Brian is white.