Property is a type of Concept. Property is related to Housing. Shelter is a type of Housing. Refuge is a type of Shelter. 
Roll is related to Side. Side is related to Coast. Coast is related to Mass. Mass is related to Bulk. 
Concept <--IsA-- Property <--RelatedTo--> Housing <--IsA-- Shelter <--IsA-- Refuge 
Roll <--RelatedTo--> Side <--RelatedTo--> Coast <--RelatedTo--> Mass <--RelatedTo--> Bulk 