Bob is furry. Bob is green. Bob is quiet. Bob is not rough. Bob is young. Charlie is furry. Charlie is quiet. Charlie is rough. Erin is furry. Erin is not rough. Fiona is green. Fiona is quiet. If someone is not quiet then they are not smart. If someone is rough then they are white. If someone is green then they are furry. All green, quiet people are smart. If someone is quiet and not young then they are furry. If someone is furry and white then they are rough. If someone is white and not furry then they are green. If someone is green and not furry then they are smart.
Bob is not quiet.