_:n8377273514824d34a8025fdac862568exb3
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://gitlab.inria.fr/dtk/dtk-doc/-/blob/6d1e74d38f4ffceffbb5596137670ad24d46aa54/doc/source/examples/core/c01_factory.rst>