[['Athens International Airport', 'CITY_SERVED', 'Athens'], ['Athens', 'COUNTRY', 'Greece'], ['Greece', 'LEADER_NAME', 'Alexis Tsipras'], ['Greece', 'LEADER_NAME', 'Nikos Voutsis']]
Athens International airport serves the city of Athens in _____, where the leaders are Alexis Tsipras and Nikos Voutsis.