Reason: The source can't be downloaded in any permitted format. # no protocol: /standards/vocab/gnd/gender.rdf # no protocol: /standards/vocab/gnd/gender.ttl # no protocol: /standards/vocab/gnd/gender.html # no protocol: /standards/vocab/gnd/gender.html # no protocol: /standards/vocab/gnd/gender.html # no protocol: /standards/vocab/gnd/gender.html