_:vb4666523 <http://www.w3.org/2006/time#inXSDDate> "1949-04-15"^^<http://www.w3.org/2001/XMLSchema#date> . _:vb4666523 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2006/time#Instant> .