Basement is related to Main. Main is related to Topic. 
Statue is related to Greek. Greek is a type of Human. Human is related to Farmer. Farmer is related to Occupation. 
Basement <--RelatedTo--> Main <--RelatedTo--> Topic 
Statue <--RelatedTo--> Greek --IsA--> Human <--RelatedTo--> Farmer <--RelatedTo--> Occupation 