Dave is blue. Dave is nice. Erin is nice. Fiona is green. Fiona is young. Harry is white. Harry is young. Green, blue people are smart. White, nice people are young. If someone is smart then they are nice. Young people are blue. Green, nice people are young. If someone is smart then they are not furry. If Erin is nice then Erin is green. If someone is not green then they are nice.
Harry is not green.