context: It is highly unlikely that Brian is a lion. It is almost certain that Bernhard is a rhino. Chances are slight that John moved to the garden.
hypothesis: It is highly likely that either Brian is a lion, or Bernhard is a rhino.
valid_hypothesis: It is highly likely that either Brian is a lion, or Bernhard is a rhino.
invalid_hypothesis: There is little chance that either Brian is a lion, or Bernhard is a rhino.
hypothesis_assertion: Either Brian is a lion, or Bernhard is a rhino.