machine_question: what is the sacred text of daoism and that was written by Laozi
question: Which sacred text of Daoism was written by Laozi?
sparql: PREFIX ns: <http://rdf.freebase.com/ns/>
  SELECT DISTINCT ?x
  WHERE {
  FILTER (?x != ns:m.07gvx)
  FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
  ns:m.07gvx ns:religion.religion.texts ?x .
  ?x ns:book.written_work.author ns:m.0h9wp . 
  }
webqsp_question: what is the sacred text of daoism