context: It is unlikely that John left the apple. It is improbable that Bernhard is a swan. It is impossible that Brian is a frog. There is almost no chance that if John left the apple, or Bernhard is a swan, then Lily is yellow. It is impossible that if John left the apple, or Brian is a frog, then Emily is a sheep. It is probable that if either Brian is a frog, or Bernhard is a swan, then Greg is a rhino.
hypothesis: It is highly likely that bernhard is a swan, or John left the apple.
valid_hypothesis: It is probably not the case that bernhard is a swan, or John left the apple.
invalid_hypothesis: It is highly likely that bernhard is a swan, or John left the apple.
hypothesis_assertion: Bernhard is a swan, or John left the apple.