Anne is nice. Anne is quiet. Anne is white. Charlie is nice. Charlie is quiet. Charlie is rough. Charlie is not white. Harry is nice. Harry is not quiet. Harry is not red. Harry is not rough. Harry is not white. If someone is white and not nice then they are green. If someone is green and not white then they are not furry. All nice, furry people are red. If someone is nice then they are green. If Anne is quiet then Anne is not furry. Rough people are quiet.
Charlie is not furry.