context: There is almost no chance that Mary moved to the garden. We believe that Bernhard is a swan. We believe that Sandra left the milk. It is probable that if Bernhard is a swan, or Mary moved to the garden, then Brian is yellow. It is highly likely that if either Bernhard is a swan, or Mary moved to the garden, then John went to the kitchen. There is a better than even chance that if either Mary moved to the garden, or Sandra left the milk, then Julius is white.
hypothesis: Chances are about even that brian is yellow, and John went to the kitchen.
valid_hypothesis: Chances are about even that brian is yellow, and John went to the kitchen.
invalid_hypothesis: There is almost no chance that brian is yellow, and John went to the kitchen.
hypothesis_assertion: Brian is yellow, and John went to the kitchen.