urn:ddi:int.example:0c32bdf5-e4f7-40a1-993c-4e84b1e41cbe:1 int.example 0c32bdf5-e4f7-40a1-993c-4e84b1e41cbe 1 fdz@dezim-institut.de soc0015 soc0013_g-soc0013_o_v3 soc0013_g-soc0013_o_v3 soc0013_g-soc0013_o_v3 Erste Staatsangehörigkeit - ISO 3166 First citizenship - ISO 3166 First citizenship - ISO 3166 Welche Staatsangehörigkeit haben Sie? What is your nationality? What is your nationality?