What is <Berlin cultural heritage ID> of <Pergamon Museum> ?
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Which is Berlin cultural heritage ID for  Pergamon Museum?
SELECT DISTINCT ?e WHERE { resource:Pergamon_Museum property:Berlin_cultural_heritage_ID ?e }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q157298> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2424> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q157298 wdt:P2424 ?answer}