@prefix ps: <http://www.wikidata.org/prop/statement/> .
@prefix wds: <http://www.wikidata.org/entity/statement/> .
@prefix wikibase: <http://wikiba.se/ontology#> .

wds:P732-cbbde465-4e7e-8f6d-2d80-89fe4a103db3 a wikibase:BestRank ;
    wikibase:rank wikibase:NormalRank ;
    ps:P1793 "[A-Z]{1,4}" .