context: It is highly likely that Sandra left the apple. There is little chance that Brian is white. It is impossible that Bernhard is a swan.
hypothesis: It is likely that sandra left the apple, and Bernhard is a swan.
valid_hypothesis: It is impossible that sandra left the apple, and Bernhard is a swan.
invalid_hypothesis: It is likely that sandra left the apple, and Bernhard is a swan.
hypothesis_assertion: Sandra left the apple, and Bernhard is a swan.