What is the {document} for {foundational text} of {Soviet Union}
What is the foundational report of the Soviet Union?
What is the foundational document of the Soviet Union?
SELECT DISTINCT ?d WHERE { resource:Soviet_Union property:foundational_text ?d . ?d rdf:type ontology:document }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q15180> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P457> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?obj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q49848> } 
 select distinct ?obj where { wd:Q15180 wdt:P457 ?obj . ?obj wdt:P31 wd:Q49848 } 
Treaty on the Creation of the Union of Soviet Socialist Republics