Bob is red. Bob is rough. Bob is smart. Bob is white. Bob is young. Fiona is red. Fiona is smart. Gary is furry. Harry is red. Harry is smart. Harry is not young. All quiet things are young. Furry, red things are rough. If something is rough and not smart then it is white. If something is red and not smart then it is furry. Furry things are red. If something is white and red then it is quiet.
Gary is not young.