<http://lod.ehri-project-test.eu/units/us-005578-irn507310-irn504928/alternateIDs/2> <https://www.ica.org/standards/RiC/ontology#textualValue> "RG-50.549.01.0021" .
<http://lod.ehri-project-test.eu/units/us-005578-irn507310-irn504928/alternateIDs/2> <https://www.ica.org/standards/RiC/ontology#isOrWasIdentifierOf> <http://lod.ehri-project-test.eu/units/us-005578-irn507310-irn504928> .
<http://lod.ehri-project-test.eu/units/us-005578-irn507310-irn504928/alternateIDs/2> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://www.ica.org/standards/RiC/ontology#Identifier> .