context: There is a better than even chance that Mary discarded the milk. It is certain that Daniel dropped the apple. It is impossible that Bernhard is a swan. There is a better than even chance that if Bernhard is a swan, and Mary discarded the milk, then Julius is yellow. It is improbable that if Bernhard is a swan, and Daniel dropped the apple, then Greg is a frog. There is a better than even chance that if Daniel dropped the apple, and Bernhard is a swan, then Brian is green.
hypothesis: It is impossible that julius is yellow, or Brian is green.
valid_hypothesis: It is impossible that julius is yellow, or Brian is green.
invalid_hypothesis: We believe that julius is yellow, or Brian is green.
hypothesis_assertion: Julius is yellow, or Brian is green.