What is the {written work} for {notable work} of {Ludwig Wittgenstein}
What are the notable works of Ludwig Wittgenstein?
 select distinct ?obj where { wd:Q9391 wdt:P800 ?obj . ?obj wdt:P31 wd:Q47461344 } 
select distinct ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q9391> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P800> . ?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/Q47461344> } 
What are the striking works of Ludwig Wittgenstein?