Question: How many organizations own the website to which Jimmy Wales contributes?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:author <http://dbpedia.org/resource/Jimmy_Wales> . ?x onto:owner ?uri  . ?uri rdf:type onto:Organisation}