Bob is blue. Bob is furry. Bob is not green. Bob is not kind. Bob is red. Bob is white. Bob is young. Dave is blue. Dave is not kind. Dave is red. Dave is white. Dave is young. Gary is blue. Gary is green. Gary is white. Gary is young. If someone is young then they are red. All young people are white. If someone is young and kind then they are furry. If Dave is green and Dave is not blue then Dave is kind. All white people are young. All young people are furry. If someone is not furry then they are not blue. If Gary is furry and Gary is not white then Gary is blue.
Dave is not young.