Bob is green. Fiona is blue. All smart, quiet people are not furry. If someone is blue and green then they are quiet. If someone is quiet then they are smart. If someone is blue then they are green. Red people are not furry. If someone is smart then they are red. If someone is smart and not blue then they are not green. If Bob is not green and Bob is not big then Bob is not smart.
Fiona is not blue.