What is the {self-propelled gun} for {country of origin} of {Soviet Union}
Which self propelled gun originated in the Soviet Union?
 select distinct ?sbj where { ?sbj wdt:P495 wd:Q15180 . ?sbj wdt:P31 wd:Q272574 } 
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/P495> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q15180> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q272574> } 
Which gun is use by the Soviet Union?