context: It is improbable that Sandra left the apple. We believe that Bernhard is white. There is a very good chance that Lily is a frog.
hypothesis: It is certain that sandra left the apple, and Bernhard is white.
valid_hypothesis: It is improbable that sandra left the apple, and Bernhard is white.
invalid_hypothesis: It is certain that sandra left the apple, and Bernhard is white.
hypothesis_assertion: Sandra left the apple, and Bernhard is white.