what is the {applies to part} for {German Democratic Republic} has {official language} as {Sorbian} ?
Sorbian is the official language in what part of the German Democratic Republic?
What part of the German Democratic Republic has Sorbian as an official language?
SELECT ?u WHERE { resource:East_Germany property:official_language ?x . ?x property:applies_to_part ?u . ?x property:official_language resource:Sorbian }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q16957> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P37> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q25442> .
?statement <http://www.wikidata.org/entity/P518> ?value. 
} 

SELECT ?value WHERE { wd:Q16957 p:P37 ?s . ?s ps:P37 wd:Q25442 . ?s pq:P518 ?value}