Chest is part of Person. Chest is related to Trunk. you are likely to find Trunk in/at/on Automobile. Auto is etymologically related to Automobile. 
Product is related to Butter. Butter is a type of Mixture. Mixture is related to Combined. 
Person <--PartOf-- Chest <--RelatedTo--> Trunk --AtLocation--> Automobile <--EtymologicallyRelatedTo-- Auto 
Product <--RelatedTo--> Butter --IsA--> Mixture <--RelatedTo--> Combined 