Dave is cold. Dave is furry. Dave is green. Dave is not nice. Dave is quiet. Gary is not blue. Gary is not cold. Gary is furry. Gary is green. Gary is not nice. Gary is quiet. Gary is white. If someone is not blue then they are furry. If Dave is blue then Dave is quiet. Blue, quiet people are furry. All furry, green people are quiet. If someone is white and blue then they are not green. If someone is nice and quiet then they are green. If Gary is white then Gary is furry. If Dave is furry and Dave is not quiet then Dave is not blue.
Gary is not white.