context: It is impossible that Jeff went to the kitchen. Chances are about even that Julius is a swan. There is a better than even chance that Brian is a rhino. There is little chance that if Brian is a rhino, and Julius is a swan, then Bernhard is yellow. It is probably not the case that if either Jeff went to the kitchen, or Julius is a swan, then Greg is gray. It is highly likely that if Brian is a rhino, and Jeff went to the kitchen, then Daniel got the apple.
hypothesis: It is highly likely that daniel got the apple, and Greg is gray.
valid_hypothesis: It is impossible that daniel got the apple, and Greg is gray.
invalid_hypothesis: It is highly likely that daniel got the apple, and Greg is gray.
hypothesis_assertion: Daniel got the apple, and Greg is gray.