context: Chances are slight that Julius is white. It is probably the case that Bernhard is a swan. It is probably the case that John left the milk.
hypothesis: There is little chance that john left the milk, or Julius is white.
valid_hypothesis: We believe that john left the milk, or Julius is white.
invalid_hypothesis: There is little chance that john left the milk, or Julius is white.
hypothesis_assertion: John left the milk, or Julius is white.