What is the {metropolis} for {twinned administrative body} of {Bern}
What city is the sister city of Bern?
What metropolis is the sister city of Bern?
SELECT DISTINCT ?p WHERE { ?p rdf:type ontology:Metropolis . ?p property:twinned_administrative_body resource:Bern }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P190> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q70> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q200250> } 
 select distinct ?sbj where { ?sbj wdt:P190 wd:Q70 . ?sbj wdt:P31 wd:Q200250 } 
Vienna