Fiona is red. Fiona is rough. Fiona is young. All smart people are blue. Rough people are not smart. If someone is blue then they are red. If someone is green and not smart then they are blue. If someone is not young then they are furry. If someone is young and not smart then they are green. All rough people are green. If Fiona is not red then Fiona is green.
Fiona is smart.