_:n0d788e38aec646dca40f8db0a22d8ba3xb2
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://git.math.uzh.ch/typo3/qfq/-/blob/038400feb2af0d8612ca6d61369856bab6ba484c/extension/qfq/qfq/Constants.php>