Source is related to Information. Heritage is a type of Information. Heritage is a synonym of Legacy. 
Land is related to Owner. Owner is related to Store. you are likely to find Map in/at/on Store. you are likely to find Landmark in/at/on Map. 
Source <--RelatedTo--> Information <--IsA-- Heritage <--Synonym--> Legacy 
Land <--RelatedTo--> Owner <--RelatedTo--> Store <--AtLocation-- Map <--AtLocation-- Landmark 