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

wds:P5620-5dc8aab9-4f0e-4be5-8b88-5fd5f4ea4e2c a wikibase:BestRank ;
    wikibase:rank wikibase:NormalRank ;
    ps:P1793 "([a-z])\\/\\1[a-z_]*" .