Anne is quiet. Bob is red. Charlie is cold. Fiona is quiet. If someone is red then they are young. Quiet people are young. If Anne is young then Anne is red. If Bob is red and Bob is nice then Bob is quiet. If Fiona is young and Fiona is red then Fiona is quiet. All young, cold people are furry. Quiet people are nice. Red, furry people are big.
Fiona is not young.