Bob is not quiet. Bob is rough. Bob is white. Charlie is big. Charlie is blue. Charlie is quiet. Charlie is white. Dave is not big. Dave is blue. Dave is quiet. Dave is rough. Dave is white. If Bob is not blue then Bob is big. If something is young and not white then it is quiet. If something is not white then it is furry. If something is furry then it is not white. Big, young things are rough. If Bob is not quiet and Bob is not white then Bob is big.
Charlie is not rough.