Variables
Const dbo
dbo: "http://dbpedia.org/ontology/" = "http://dbpedia.org/ontology/"
Const dbp
dbp: "http://dbpedia.org/property/" = "http://dbpedia.org/property/"
Const dbr
dbr: "http://dbpedia.org/resource/" = "http://dbpedia.org/resource/"
Const wiki
wiki: "http://en.wikipedia.org/wiki/" = "http://en.wikipedia.org/wiki/"
Const wikidata
wikidata: "http://www.wikidata.org/entity/" = "http://www.wikidata.org/entity/"