context: Chances are about even that Bernhard is gray. It is improbable that Julius is a rhino. We believe that John went to the garden.
hypothesis: There is little chance that julius is a rhino, or Bernhard is gray.
valid_hypothesis: There is a better than even chance that julius is a rhino, or Bernhard is gray.
invalid_hypothesis: There is little chance that julius is a rhino, or Bernhard is gray.
hypothesis_assertion: Julius is a rhino, or Bernhard is gray.