: aboutUrlhttp://www.w3.org/ns/csvw# Create a prefix for http://www.w3.org/ns/csvw# Hit Enter to save Double click to create a prefix | : __city_safe_+_latitude_b2l_int_string_+_'_'_+_longitude_b2l_int_string__https://iisg.amsterdam/B2L/code/cityid/ Create a prefix for https://iisg.amsterdam/B2L/code/cityid/ Hit Enter to save Double click to create a prefix | : 2018-03-02T12:13http://iisg.amsterdam/concord/provenance/c335a63f/ Create a prefix for http://iisg.amsterdam/concord/provenance/c335a63f/ Hit Enter to save Double click to create a prefix |