context: It is likely that Mary put down the apple. Chances are about even that Lily is a lion. We doubt that Fred moved to the cinema.
hypothesis: We believe that mary put down the apple, and Fred moved to the cinema.
valid_hypothesis: There is little chance that mary put down the apple, and Fred moved to the cinema.
invalid_hypothesis: We believe that mary put down the apple, and Fred moved to the cinema.
hypothesis_assertion: Mary put down the apple, and Fred moved to the cinema.