Anne is green. Anne is not quiet. Anne is not white. Bob is blue. Bob is cold. Bob is furry. Bob is round. Dave is blue. Dave is furry. Dave is round. Fiona is cold. Fiona is furry. Fiona is green. Fiona is quiet. Fiona is round. Green, furry people are white. All blue people are round. All quiet people are cold.
Fiona is not round.