context: It is probably the case that Brian is a swan. There is a better than even chance that John went to the garden. There is a very good chance that Bernhard is yellow. It is likely that if John went to the garden, or Bernhard is yellow, then Julius is gray. There is little chance that if Brian is a swan, or John went to the garden, then Antoine is thirsty. There is almost no chance that if Brian is a swan, and Bernhard is yellow, then Bill is in the kitchen.
hypothesis: It is impossible that bill is in the kitchen, and Julius is gray.
valid_hypothesis: It is impossible that bill is in the kitchen, and Julius is gray.
invalid_hypothesis: It is probably the case that bill is in the kitchen, and Julius is gray.
hypothesis_assertion: Bill is in the kitchen, and Julius is gray.