context: It is likely that Jessica is a sheep. It is probably not the case that Greg is white. It is probable that Bernhard is a swan.
hypothesis: It is probably not the case that bernhard is a swan, or Greg is white.
valid_hypothesis: We believe that bernhard is a swan, or Greg is white.
invalid_hypothesis: It is probably not the case that bernhard is a swan, or Greg is white.
hypothesis_assertion: Bernhard is a swan, or Greg is white.