Bob is blue. Bob is rough. Bob is white. Charlie is furry. Charlie is quiet. Fiona is cold. Fiona is green. Fiona is quiet. Fiona is rough. Fiona is white. Harry is blue. Harry is furry. Harry is green. Harry is quiet. Harry is rough. Harry is white. If Charlie is white then Charlie is quiet. If Harry is quiet then Harry is blue. All white, blue people are furry. Cold people are blue. If someone is green then they are rough. If someone is furry then they are green. White people are green. If someone is quiet then they are green.
Charlie is not blue.