context: We believe that Julius is a rhino. It is improbable that Mary went to the garden. There is almost no chance that Bernhard is gray. It is almost certain that if either Julius is a rhino, or Bernhard is gray, then Brian is a frog. There is little chance that if Julius is a rhino, or Mary went to the garden, then John picked up the milk. It is probably not the case that if either Mary went to the garden, or Bernhard is gray, then Sandra got the football.
hypothesis: It is impossible that john picked up the milk, and Bernhard is gray.
valid_hypothesis: It is impossible that john picked up the milk, and Bernhard is gray.
invalid_hypothesis: It is almost certain that john picked up the milk, and Bernhard is gray.
hypothesis_assertion: John picked up the milk, and Bernhard is gray.