Gold is related to Piece. Piece is related to Unit. Unit is related to Week. 
Community is related to Local. Local is a synonym of Citizen. Citizen is the opposite of Stranger. 
Gold <--RelatedTo--> Piece <--RelatedTo--> Unit <--RelatedTo--> Week 
Community <--RelatedTo--> Local <--Synonym--> Citizen <--Antonym--> Stranger 