yago=http://dbpedia.org/class/yago/
rdf=http://www.w3.org/1999/02/22-rdf-syntax-ns#
foaf=http://xmlns.com/foaf/0.1/
dbp=http://dbpedia.org/property/
owl=http://www.w3.org/2002/07/owl#
dc=http://purl.org/dc/elements/1.1/
dbo=http://dbpedia.org/ontology/
rdfs=http://www.w3.org/2000/01/rdf-schema#
rss=http://purl.org/rss/1.0/
sc=http://umbel.org/umbel/sc/