context: It is probably the case that Julius is a lion. It is unlikely that Mary is in the park. It is probable that Bernhard is a swan. There is almost no chance that if Julius is a lion, or Mary is in the park, then Greg is a frog. It is probably not the case that if either Mary is in the park, or Julius is a lion, then Lily is green. There is little chance that if either Julius is a lion, or Mary is in the park, then Brian is green.
hypothesis: It is unlikely that bernhard is a swan, or Greg is a frog.
valid_hypothesis: It is probably the case that bernhard is a swan, or Greg is a frog.
invalid_hypothesis: It is unlikely that bernhard is a swan, or Greg is a frog.
hypothesis_assertion: Bernhard is a swan, or Greg is a frog.