Database: vehicle_driver
Question: Return the names and citizenships of drivers who have driven the vehicle with the model 'DJ1'.
SQL:
SELECT T1.name ,  T1.citizenship FROM driver AS T1 JOIN vehicle_driver AS T2 ON T1.driver_id  =  T2.driver_id JOIN vehicle AS T3 ON T2.vehicle_id  =  T3.vehicle_id WHERE T3.model  =  'DJ1'