[['Athens International Airport', 'CITY_SERVED', 'Athens'], ['Athens', 'COUNTRY', 'Greece'], ['Greece', 'DEMONYM', 'Greeks'], ['Greece', 'LEADER_NAME', 'Alexis Tsipras'], ['Greece', 'LEADER_NAME', 'Nikos Voutsis']]
Athens International Airport serves the city of Athens, in Greece. Two of the leaders of which are Alexis Tsipras and Nikos Voutsis. The demonym of the inhabitants of Greece is Greeks.