context: Chances are slight that Julius is a lion. It is unlikely that Bernhard is a swan. Chances are slight that Sandra got the apple. It is probably not the case that if Bernhard is a swan, or Sandra got the apple, then Sumit is thirsty. It is probably the case that if Julius is a lion, and Sandra got the apple, then Brian is a frog. We believe that if Sandra got the apple, and Julius is a lion, then Lily is white.
hypothesis: We doubt that bernhard is a swan, or Brian is a frog.
valid_hypothesis: We doubt that bernhard is a swan, or Brian is a frog.
invalid_hypothesis: It is almost certain that bernhard is a swan, or Brian is a frog.
hypothesis_assertion: Bernhard is a swan, or Brian is a frog.