Anne is blue. Anne is furry. Anne is kind. Anne is round. Anne is smart. Anne is white. Anne is young. Dave is blue. Dave is furry. Dave is round. Fiona is blue. Fiona is furry. Fiona is smart. Fiona is white. Harry is furry. If something is white then it is furry. All blue things are white. If Fiona is young then Fiona is round. White, smart things are young. Young things are blue. Round things are blue.
Dave is smart.