Anne is white. Charlie is not green. Fiona is furry. Gary is furry. If someone is round and not white then they are not furry. If Charlie is green and Charlie is not round then Charlie is not furry. Green people are red. Green people are rough. If someone is nice and white then they are rough. If someone is white and not round then they are nice. If someone is white and not rough then they are red. If someone is round and not red then they are not green.
Charlie is not rough.