Bob is furry. Bob is nice. Bob is not round. Bob is smart. Bob is white. Charlie is furry. Charlie is red. Charlie is smart. Charlie is white. Fiona is furry. Fiona is smart. Gary is quiet. All furry people are not quiet. All red people are smart. Quiet, furry people are red. All furry, quiet people are red. If someone is round and not furry then they are nice. All smart, quiet people are white. If Gary is furry and Gary is not smart then Gary is not red. If Charlie is not red and Charlie is not smart then Charlie is nice.
Charlie is not red.