Erin is big. Erin is quiet. Erin is red. Erin is rough. Erin is round. Erin is white. Erin is young. Fiona is big. Fiona is quiet. Fiona is red. Fiona is rough. Fiona is round. Fiona is white. Fiona is young. Round people are red. If someone is young then they are round. All rough people are quiet.
Fiona is not young.