เมืองคาบูลตั้งอยู่ในภูมิภาคใด
Which region is the city Kabul located in?
country_df = pd.DataFrame(columns = ['Code']); city_df = pd.DataFrame(columns = ['CountryCode', 'Name'])
country_df[country_df['Code'] == city_df[city_df['Name'] == 'Kabul']['CountryCode'].iloc[0]]['Region'].iloc[0]