query: SELECT DISTINCT ?item ?itemLabel ?abbr1 ?abbr2 ?abbr3 ?iso WHERE {
    ?item wdt:P31 wd:Q35657 ;
          p:P1813 ?statement1 .
    ?statement1 pq:P3831 wd:Q30619513 ;
               ps:P1813 ?abbr1 ;
               wikibase:rank ?rank .
    FILTER(lang(?abbr1) = "en")
    FILTER (?rank = wikibase:PreferredRank