Anne is furry. Anne is nice. Anne is rough. Anne is round. Anne is white. Bob is furry. Gary is rough. Gary is round. Gary is white. Harry is furry. Harry is green. Harry is nice. Harry is rough. Harry is white. Harry is young. All young people are furry. Green people are white. All furry, nice people are white. All rough people are furry. If Bob is rough and Bob is nice then Bob is white. If someone is furry then they are nice.
Bob is not green.