Charlie is furry. Dave is smart. Gary is not white. Harry is rough. All rough people are not nice. If someone is furry then they are blue. All nice, rough people are white. If someone is white then they are not nice. All white people are nice. If someone is blue and white then they are not rough. If someone is smart then they are furry. If someone is nice and not smart then they are not blue.
Dave is furry.