context: It is impossible that John picked up the apple. It is highly likely that Bernhard is gray. It is impossible that Mary went to the bedroom. We believe that if either Bernhard is gray, or John picked up the apple, then Bill moved to the garden. It is certain that if John picked up the apple, and Bernhard is gray, then Julius is a swan. We doubt that if Bernhard is gray, and Mary went to the bedroom, then Brian is yellow.
hypothesis: It is impossible that brian is yellow, and Mary went to the bedroom.
valid_hypothesis: It is impossible that brian is yellow, and Mary went to the bedroom.
invalid_hypothesis: There is a very good chance that brian is yellow, and Mary went to the bedroom.
hypothesis_assertion: Brian is yellow, and Mary went to the bedroom.