Question: What are the locations and representatives' names of the gas stations owned by the companies with the 3 largest amounts of assets?
SQL: SELECT T3.location ,  T3.Representative_Name FROM station_company AS T1 JOIN company AS T2 ON T1.company_id  =  T2.company_id JOIN gas_station AS T3 ON T1.station_id  =  T3.station_id ORDER BY T2.Assets_billion DESC LIMIT 3