context: Chances are slight that Brian is a rhino. It is likely that Mary moved to the office. There is a better than even chance that Bernhard is gray. There is little chance that if Bernhard is gray, or Mary moved to the office, then Julius is white. Chances are about even that if either Brian is a rhino, or Mary moved to the office, then Daniel got the apple. Chances are slight that if either Mary moved to the office, or Bernhard is gray, then Winona is a mouse.
hypothesis: It is likely that brian is a rhino, or Julius is white.
valid_hypothesis: We doubt that brian is a rhino, or Julius is white.
invalid_hypothesis: It is likely that brian is a rhino, or Julius is white.
hypothesis_assertion: Brian is a rhino, or Julius is white.