Bob is green. Dave is big. Fiona is not quiet. Gary is furry. Furry people are white. If someone is nice and not quiet then they are furry. All white, blue people are not big. If someone is nice and not quiet then they are not blue. White, big people are not nice. If someone is not quiet then they are green. If someone is big and not nice then they are furry. If someone is not nice and not furry then they are green.
Dave is not nice.