Question: Give me the total number of architect of the buildings whose one of the architect was Louis D. Astorino?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x prop:architect <http://dbpedia.org/resource/Louis_D._Astorino> . ?x prop:architect ?uri }