Anne is smart. Charlie is blue. Erin is rough. Fiona is blue. If someone is furry then they are rough. If someone is young and furry then they are big. Rough people are smart. If someone is smart and not furry then they are young. If Erin is smart then Erin is quiet. All smart, furry people are quiet. Blue people are big. If someone is smart and not big then they are quiet.
Fiona is not young.