context: It is probably not the case that Lily is a rhino. It is probably the case that Bernhard is a lion. It is probably the case that Julius is white. There is a better than even chance that if Lily is a rhino, and Julius is white, then Brian is a frog. It is almost certain that if Bernhard is a lion, and Lily is a rhino, then Mary grabbed the milk. It is unlikely that if either Bernhard is a lion, or Lily is a rhino, then Greg is a swan.
hypothesis: Chances are slight that bernhard is a lion, and Greg is a swan.
valid_hypothesis: Chances are slight that bernhard is a lion, and Greg is a swan.
invalid_hypothesis: There is a better than even chance that bernhard is a lion, and Greg is a swan.
hypothesis_assertion: Bernhard is a lion, and Greg is a swan.