Dave is green. Dave is red. Dave is smart. Dave is young. Fiona is cold. Fiona is not kind. Fiona is not red. Fiona is rough. Fiona is not young. Gary is green. Gary is red. Gary is rough. Gary is not young. Harry is kind. Harry is red. If someone is smart then they are red. All kind people are smart. If Gary is red then Gary is not smart. If Harry is red and Harry is smart then Harry is cold. If Fiona is green then Fiona is rough. All rough people are not young.
Gary is young.