Anne is not furry. Anne is quiet. Anne is young. Dave is furry. Dave is green. Dave is rough. Dave is smart. Dave is not young. Gary is not quiet. Gary is smart. Rough, smart people are not round. Young, quiet people are round. If someone is round then they are smart. If someone is not smart then they are round. If Dave is rough and Dave is not smart then Dave is young. If someone is not young and not furry then they are rough.
Anne is not green.