context: It is highly likely that Bernhard is a lion. It is almost certain that Mary went to the kitchen. We believe that Brian is a swan. It is certain that if Brian is a swan, and Bernhard is a lion, then Daniel left the football. It is probably not the case that if either Brian is a swan, or Bernhard is a lion, then Gertrude is a cat. It is probably the case that if Bernhard is a lion, or Brian is a swan, then Julius is gray.
hypothesis: Chances are slight that bernhard is a lion, and Daniel left the football.
valid_hypothesis: It is probably the case that bernhard is a lion, and Daniel left the football.
invalid_hypothesis: Chances are slight that bernhard is a lion, and Daniel left the football.
hypothesis_assertion: Bernhard is a lion, and Daniel left the football.