context: Chances are about even that Julius is white. It is highly unlikely that Bernhard is gray. It is probable that Brian is green. It is improbable that if Brian is green, and Julius is white, then Mary got the milk. There is almost no chance that if either Julius is white, or Bernhard is gray, then John moved to the garden. It is impossible that if either Brian is green, or Julius is white, then Bill went to the kitchen.
hypothesis: It is improbable that mary got the milk, or Brian is green.
valid_hypothesis: It is probable that mary got the milk, or Brian is green.
invalid_hypothesis: It is improbable that mary got the milk, or Brian is green.
hypothesis_assertion: Mary got the milk, or Brian is green.