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