Price is related to Evaluation. Evaluate is etymologically related to Evaluation. Evaluate is a synonym of Assess. Assess is a type of Charge. 
Absence is related to Shade. Shade is related to Free. Free is a synonym of Rid. 
Price <--RelatedTo--> Evaluation <--EtymologicallyRelatedTo-- Evaluate <--Synonym--> Assess --IsA--> Charge 
Absence <--RelatedTo--> Shade <--RelatedTo--> Free <--Synonym--> Rid 