context: It is probable that Lily is green. It is impossible that Bill is in the park. Chances are slight that Brian is a rhino.
hypothesis: We doubt that either Brian is a rhino, or Lily is green.
valid_hypothesis: It is likely that either Brian is a rhino, or Lily is green.
invalid_hypothesis: We doubt that either Brian is a rhino, or Lily is green.
hypothesis_assertion: Either Brian is a rhino, or Lily is green.