context: We doubt that Bernhard is a swan. Chances are about even that Lily is a lion. It is probably not the case that Greg is a rhino.
hypothesis: There is a better than even chance that lily is a lion, or Bernhard is a swan.
valid_hypothesis: There is a better than even chance that lily is a lion, or Bernhard is a swan.
invalid_hypothesis: It is improbable that lily is a lion, or Bernhard is a swan.
hypothesis_assertion: Lily is a lion, or Bernhard is a swan.