What is <product certification> of <Marsala wine> ?
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Which is the product certification for Marsala wine?
SELECT DISTINCT ?j WHERE { resource:Marsala_wine property:product_certification ?j }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q842052> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1389> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q842052 wdt:P1389 ?answer}
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