What is the {stock market crash} for {has cause} of {Great Depression}
What is the cause of stock showcase crash of Incredible Depression?
What is the cause of stock market crash of Great Depression?
SELECT DISTINCT ?z WHERE { resource:Great_Depression property:has_cause ?z . ?z rdf:type ontology:stock_market_crash }
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q8698> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P828> . ?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/Q1020018> } 
 select distinct ?obj where { wd:Q8698 wdt:P828 ?obj . ?obj wdt:P31 wd:Q1020018 } 
Wall Street Crash of 1929