query: #Dresdner Unternehmen mit Geokoordinaten (Headquarter)
  SELECT ?item ?itemLabel ?street ?coord ?industryLabel
  WHERE 
  {
    ?item wdt:P31 wd:Q4830453.
    ?item wdt:P159 wd:Q1731.
    ?item wdt:P452 ?industry. 
    optional {
    ?item p:P159 [ pq:P625 ?coord; pq:P969 ?street;]
      }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],de". }
    
  }