Charlie is rough. Dave is green. Dave is white. Fiona is blue. Fiona is furry. Fiona is quiet. Fiona is white. If Fiona is white then Fiona is quiet. All white people are green. If Charlie is green and Charlie is blue then Charlie is rough. If someone is kind then they are white. If Charlie is not kind then Charlie is not furry. All green people are furry. If someone is blue and not furry then they are green. If someone is not white then they are not kind.
Charlie is not white.