context: There is almost no chance that Lily is a rhino. There is a very good chance that Bernhard is a lion. It is improbable that Julius is a frog. It is probable that if either Julius is a frog, or Lily is a rhino, then Mary got the milk. It is probably not the case that if Julius is a frog, and Lily is a rhino, then Greg is yellow. We doubt that if Lily is a rhino, or Julius is a frog, then Bill is in the school.
hypothesis: Chances are about even that lily is a rhino, and Greg is yellow.
valid_hypothesis: It is impossible that lily is a rhino, and Greg is yellow.
invalid_hypothesis: Chances are about even that lily is a rhino, and Greg is yellow.
hypothesis_assertion: Lily is a rhino, and Greg is yellow.