query: #Scientific articles with titles that are all UPPER CASE
  SELECT ?item ?title WHERE {
    ?item wdt:P31 wd:Q13442814; #scientific article
          wdt:P1476 ?title. #title
    FILTER(REGEX(STR(?title), "^[\\p{Lu}\\p{M}\\p{N}\\p{P}\\p{Z}]+$")) #non-lowercase 
  }
  LIMIT 1000