_:vb4471887 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://erlangen-crm.org/current/E54_Dimension> . _:vb4471887 <http://erlangen-crm.org/current/P91_has_unit> "disque compact" . _:vb4471887 <http://erlangen-crm.org/current/P90_has_value> "1"^^<http://www.w3.org/2001/XMLSchema#int> .