context: We doubt that Julius is yellow. It is highly unlikely that Bernhard is a lion. It is highly unlikely that Lily is white. There is a better than even chance that if either Julius is yellow, or Bernhard is a lion, then Greg is white. It is highly likely that if Lily is white, or Julius is yellow, then Mary dropped the milk. It is probably the case that if Lily is white, and Julius is yellow, then John moved to the garden.
hypothesis: It is unlikely that bernhard is a lion, or Greg is white.
valid_hypothesis: It is unlikely that bernhard is a lion, or Greg is white.
invalid_hypothesis: It is probably the case that bernhard is a lion, or Greg is white.
hypothesis_assertion: Bernhard is a lion, or Greg is white.