context: Chances are slight that Lily is yellow. It is improbable that Julius is a swan. There is almost no chance that Emily is a cat.
hypothesis: It is probably the case that either Julius is a swan, or Lily is yellow.
valid_hypothesis: It is unlikely that either Julius is a swan, or Lily is yellow.
invalid_hypothesis: It is probably the case that either Julius is a swan, or Lily is yellow.
hypothesis_assertion: Either Julius is a swan, or Lily is yellow.