context: There is a very good chance that Brian is a frog. It is certain that Mary is in the garden. It is almost certain that John picked up the milk. It is probably not the case that if either John picked up the milk, or Brian is a frog, then Julius is gray. It is impossible that if Brian is a frog, and John picked up the milk, then Bernhard is a rhino. It is probably not the case that if Mary is in the garden, and Brian is a frog, then Greg is yellow.
hypothesis: Chances are about even that julius is gray, or Bernhard is a rhino.
valid_hypothesis: It is highly unlikely that julius is gray, or Bernhard is a rhino.
invalid_hypothesis: Chances are about even that julius is gray, or Bernhard is a rhino.
hypothesis_assertion: Julius is gray, or Bernhard is a rhino.