Fiona is strong. Fiona is huge. Harry is tiny. Harry is little. Gary is quiet. Alan is poor. Alan is sad. If someone is not high then they are poor. If someone is not bad then they are nice. If someone is quiet then they are clever. If someone is clever and not rough then they are smart. If someone is poor and not high then they are dull. All dull people are thin. If someone is tiny and little then they are rough. If someone is rough and not clever then they are sad. If someone is sad then they are young. If someone is nice then they are kind. All kind people are wealthy. All smart people are old. 
Fiona is thin.