context: It is almost certain that Brian is a lion. It is certain that Greg is white. It is unlikely that Bernhard is a frog. There is little chance that if Bernhard is a frog, or Brian is a lion, then Lily is green. Chances are slight that if either Brian is a lion, or Greg is white, then John discarded the apple. It is unlikely that if either Greg is white, or Brian is a lion, then Sandra took the milk.
hypothesis: We doubt that bernhard is a frog, or Sandra took the milk.
valid_hypothesis: We doubt that bernhard is a frog, or Sandra took the milk.
invalid_hypothesis: It is almost certain that bernhard is a frog, or Sandra took the milk.
hypothesis_assertion: Bernhard is a frog, or Sandra took the milk.