Question: List the books whose authors are in Alcal de Henares.
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:birthPlace <http://dbpedia.org/resource/Alcalá_de_Henares> . ?uri onto:author ?x  . ?uri rdf:type onto:Book}