context: We believe that Bernhard is a frog. There is a better than even chance that Sandra got the milk. We believe that Julius is a swan. It is certain that if Julius is a swan, and Bernhard is a frog, then Greg is yellow. There is almost no chance that if either Julius is a swan, or Bernhard is a frog, then Brian is a lion. It is impossible that if either Julius is a swan, or Sandra got the milk, then Lily is a rhino.
hypothesis: It is impossible that brian is a lion, and Bernhard is a frog.
valid_hypothesis: It is impossible that brian is a lion, and Bernhard is a frog.
invalid_hypothesis: It is probably the case that brian is a lion, and Bernhard is a frog.
hypothesis_assertion: Brian is a lion, and Bernhard is a frog.