context: Chances are about even that Bernhard is gray. It is probable that John left the football. It is likely that Julius is green. We doubt that if John left the football, or Julius is green, then Jeff dropped the apple. It is improbable that if John left the football, and Bernhard is gray, then Mary went to the kitchen. Chances are about even that if Julius is green, or Bernhard is gray, then Brian is yellow.
hypothesis: Chances are about even that brian is yellow, or Mary went to the kitchen.
valid_hypothesis: Chances are about even that brian is yellow, or Mary went to the kitchen.
invalid_hypothesis: There is almost no chance that brian is yellow, or Mary went to the kitchen.
hypothesis_assertion: Brian is yellow, or Mary went to the kitchen.