http://purl.org/linked-data/sdmx/2009/code#sex-{sex}
http://www.wikidata.org/entity/{head_household}
https://rdf.muninn-project.org/ontologies/appearances-en.html#{huidskleur}
https://www.ru.nl/slavenregisters/WR1846/{adrescode}
https://www.ru.nl/slavenregisters/WR1846/{bron}_{jaar}
https://www.ru.nl/slavenregisters/WR1846/{godsd_db}
https://www.ru.nl/slavenregisters/WR1846/{godsd_norm}
https://www.ru.nl/slavenregisters/WR1846/{huidskleur}
https://www.ru.nl/slavenregisters/WR1846/{wijk}
https://www.ru.nl/slavenregisters/WR1846/person/{ID}