The following RDF properties may be searched.

Common QName URI
og:title http://ogp.me/ns#title
dc:title http://purl.org/dc/elements/1.1/title
dcterms:title http://purl.org/dc/terms/title
gr:legalName http://purl.org/goodrelations/v1#legalName
rss:title        http://purl.org/rss/1.0/title
fb:type.object.name        http://rdf.freebase.com/ns/type.object.name
sioc:name http://rdfs.org/sioc/ns#name
gn:alternateName http://www.geonames.org/ontology#alternateName
gn:name http://www.geonames.org/ontology#name
gn:officialName http://www.geonames.org/ontology#officialName
gn:shortName        http://www.geonames.org/ontology#shortName
rdfs:label http://www.w3.org/2000/01/rdf-schema#label
skos:altLabel http://www.w3.org/2004/02/skos/core#altLabel
skos:hiddenLabel http://www.w3.org/2004/02/skos/core#hiddenLabel
skos:prefLabel http://www.w3.org/2004/02/skos/core#prefLabel
vcard:additional-name        http://www.w3.org/2006/vcard/ns#additional-name
vcard:family-name http://www.w3.org/2006/vcard/ns#family-name
vcard:fn http://www.w3.org/2006/vcard/ns#fn
vcard:given-name http://www.w3.org/2006/vcard/ns#given-name
vcard:label http://www.w3.org/2006/vcard/ns#label
vcard:nickname http://www.w3.org/2006/vcard/ns#nickname
vcard:organization-name http://www.w3.org/2006/vcard/ns#organization-name
vcard:organization-unit http://www.w3.org/2006/vcard/ns#organization-unit
skosxl:literalForm http://www.w3.org/2008/05/skos-xl#literalForm
foaf:name        http://xmlns.com/foaf/0.1/name