gistfile1.txt

SELECT 
?s 
?p 
?o
?time

  WHERE {
    { 
    GRAPH ?graph { ?s ?p ?o } .
    ?graph  <http://cr.eionet.europa.eu/ontologies/contreg.rdf#lastRefreshed> ?time .  
      FILTER (?s in (<https://biodiversity.europa.eu/countries/united-kingdom>,<https://biodiversity.europa.eu/countries/liechtenstein>)) . 

      FILTER NOT EXISTS { ?o <http://www.w3.org/2000/01/rdf-schema#label> ?o1 } .
      FILTER NOT EXISTS { ?o <http://purl.org/dc/terms/title> ?o2 } .

    } UNION {

      SELECT DISTINCT ?s ?p (str(?label) as ?o) 
      { 
        ?s ?p ?res   .
        FILTER (?s in (<https://biodiversity.europa.eu/countries/united-kingdom>,<https://biodiversity.europa.eu/countries/liechtenstein>))   .
      {
        ?res <http://www.w3.org/2000/01/rdf-schema#label> ?label .
      } UNION {
        ?res <http://purl.org/dc/terms/title> ?label .
      }
    }}
  }