Question: Laozi has authored which books?
SPARQL query: SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/author> <http://dbpedia.org/resource/Laozi>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Book>}
Answer: [Tao Te Ching] is a book authored by Laozi.