Fiona is big. Fiona is blue. Fiona is furry. Fiona is green. Fiona is rough. Fiona is round. Fiona is white. Gary is furry. Gary is round. Gary is white. All furry things are rough. All rough things are green. All blue things are green. If Fiona is white and Fiona is green then Fiona is big. Green, furry things are big. If something is green then it is round. All big, green things are blue. Round things are white.
Gary is not green.