Erin is nice. Erin is red. Fiona is nice. Fiona is red. Fiona is rough. Fiona is young. Gary is rough. Gary is smart. Harry is red. Harry is rough. Harry is round. Young, red people are blue. If someone is red and young then they are rough. Rough people are smart. Young, smart people are nice. Round, nice people are rough. All smart people are round. Nice people are smart. If Fiona is round then Fiona is smart. All rough, nice people are young.
Harry is not blue.