context: There is a very good chance that Lily is a frog. Chances are about even that Bernhard is a swan. It is improbable that Julius is a rhino.
hypothesis: It is highly unlikely that either Bernhard is a swan, or Lily is a frog.
valid_hypothesis: Chances are about even that either Bernhard is a swan, or Lily is a frog.
invalid_hypothesis: It is highly unlikely that either Bernhard is a swan, or Lily is a frog.
hypothesis_assertion: Either Bernhard is a swan, or Lily is a frog.