Consulta DBPedia: Obras entre 1500 y 1600 de tipo "Oil on canvas"

obras_oil.sparql

PREFIX dbp: <http://dbpedia.org/property/>
prefix dbo: <http://dbpedia.org/ontology/>
prefix dbr: <http://dbpedia.org/resource/>
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

select * where { 
  ?obra dbo:author ?author .
  ?obra dbp:year ?year ;
        dbp:type ?type .
  FILTER (?year > 1500 && ?year < 1600)
  FILTER (str(?type)="Oil on canvas")
}