What is <ISO 3166-3> of <North Vietnam> ?
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North Vietnam has which ISO 3166-3?
SELECT DISTINCT ?w WHERE { resource:North_Vietnam property:ISO_3166-3 ?w }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q172640> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P773> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q172640 wdt:P773 ?answer}
VDVN