context: Chances are slight that Bernhard is gray. It is improbable that Julius is a rhino. It is probable that Fred moved to the office. There is almost no chance that if Bernhard is gray, or Fred moved to the office, then Lily is a frog. It is impossible that if either Julius is a rhino, or Bernhard is gray, then Bill left the milk. It is likely that if Bernhard is gray, and Julius is a rhino, then Brian is gray.
hypothesis: There is almost no chance that julius is a rhino, and Bernhard is gray.
valid_hypothesis: There is almost no chance that julius is a rhino, and Bernhard is gray.
invalid_hypothesis: It is probable that julius is a rhino, and Bernhard is gray.
hypothesis_assertion: Julius is a rhino, and Bernhard is gray.