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