Anne is furry. Anne is green. Bob is blue. Bob is furry. Bob is white. Dave is furry. Dave is quiet. Dave is round. Dave is white. Fiona is blue. Fiona is quiet. Round, furry people are white. Green, quiet people are round. All white people are quiet. All white, quiet people are not rough. Green people are blue. If someone is furry then they are green. Blue people are quiet. If someone is quiet then they are furry. If someone is blue and not round then they are rough.
Anne is not rough.