Anne is green. Anne is red. Bob is furry. Bob is white. Erin is big. Erin is white. Fiona is green. All rough, furry people are quiet. All furry people are green. If Fiona is rough and Fiona is red then Fiona is quiet. If someone is white then they are red. If someone is red and green then they are rough. If someone is red then they are big. If someone is red then they are furry.
Erin is not red.