District is related to Board. Board is related to Part. Part is related to Brake. Brake is a different concept from Gas. 
Rid is a synonym of Deliver. Deliver is the opposite of Pick. 
District <--RelatedTo--> Board <--RelatedTo--> Part <--RelatedTo--> Brake <--DistinctFrom--> Gas 
Rid <--Synonym--> Deliver <--Antonym--> Pick 