query: #Sample of scientific articles missing description in any language
  SELECT distinct ?item ?itemLabel
  WHERE 
  {
    SERVICE bd:sample {
      ?item wdt:P31 wd:Q13442814.
      bd:serviceParam bd:sample.limit 250000
    }
    ?item rdfs:label ?label.
    minus {
      ?item schema:description [].
    }
    filter(regex(lcase(str(?label)), "correction*") || 
           regex(lcase(str(?label)), "*breif*") ||
           regex(lcase(str(?label)), "obitu*") ||
           regex(lcase(str(?label)), "*letter*") ||
           regex(lcase(str(?label)), "england*") ||
           regex(lcase(str(?label)), "wales*") ||
           regex(lcase(str(?label)), "note*") ||
           regex(lcase(str(?label)), "review*") ||
           regex(lcase(str(?label)), "corresp*") ||
           regex(lcase(str(?label)), "book*") ||
           regex(lcase(str(?label)), "digest*") ||
           regex(lcase(str(?label)), "notic*") ||
           regex(lcase(str(?label)), "digest*") ||
           regex(lcase(str(?label)), "comme*") ||
           regex(lcase(str(?label)), "news*")). 
    
    
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }
  limit 1000
  