context: It is unlikely that Lily is a rhino. There is a better than even chance that Brian is white. We believe that John picked up the milk. There is little chance that if John picked up the milk, or Brian is white, then Bernhard is a lion. There is a very good chance that if either Brian is white, or John picked up the milk, then Mary moved to the garden. It is certain that if Lily is a rhino, and Brian is white, then Julius is a frog.
hypothesis: There is a better than even chance that either Bernhard is a lion, or Brian is white.
valid_hypothesis: There is a better than even chance that either Bernhard is a lion, or Brian is white.
invalid_hypothesis: There is almost no chance that either Bernhard is a lion, or Brian is white.
hypothesis_assertion: Either Bernhard is a lion, or Brian is white.