you are likely to find Politics in/at/on Country. Country is related to Independent. Independent is the opposite of Dependent. Dependent is derived from Depend. 
you are likely to find Paint in/at/on Garage. you are likely to find Bus in/at/on Garage. Bus is related to Passenger. you are likely to find Passenger in/at/on Airport. 
Politics --AtLocation--> Country <--RelatedTo--> Independent <--Antonym--> Dependent --DerivedFrom--> Depend 
Paint --AtLocation--> Garage <--AtLocation-- Bus <--RelatedTo--> Passenger --AtLocation--> Airport 