Site is related to Ruin. Ruin is related to Broken. Community can Broken. House is a type of Community. 
Slavery is a type of Labor. Slavery is a different concept from Free. Free is related to Being. 
Site <--RelatedTo--> Ruin <--RelatedTo--> Broken <--CapableOf-- Community <--IsA-- House 
Labor <--IsA-- Slavery <--DistinctFrom--> Free <--RelatedTo--> Being 