context: We doubt that Brian is a swan. We doubt that Lily is a swan. It is highly unlikely that Julius is a frog.
hypothesis: We believe that either Julius is a frog, or Lily is a swan.
valid_hypothesis: It is probably not the case that either Julius is a frog, or Lily is a swan.
invalid_hypothesis: We believe that either Julius is a frog, or Lily is a swan.
hypothesis_assertion: Either Julius is a frog, or Lily is a swan.