context: It is probably the case that Brian is yellow. We believe that Bernhard is green. There is almost no chance that John went to the garden. It is improbable that if John went to the garden, and Brian is yellow, then Julius is gray. It is improbable that if Bernhard is green, or Brian is yellow, then Greg is a lion. There is a better than even chance that if John went to the garden, or Brian is yellow, then Emily is a mouse.
hypothesis: There is little chance that either Brian is yellow, or Julius is gray.
valid_hypothesis: It is probable that either Brian is yellow, or Julius is gray.
invalid_hypothesis: There is little chance that either Brian is yellow, or Julius is gray.
hypothesis_assertion: Either Brian is yellow, or Julius is gray.