Erin is strong. Erin is huge. Dave is little. Dave is small. Harry is quiet. Fiona is dull. Fiona is bad. If someone is not high then they are dull. If someone is not poor then they are smart. If someone is quiet then they are kind. If someone is kind and not sad then they are nice. If someone is dull and not high then they are rough. All rough people are thin. If someone is little and small then they are sad. If someone is sad and not kind then they are bad. If someone is bad then they are young. If someone is smart then they are clever. All clever people are wealthy. All nice people are experienced. 
Erin is thin.