Question: How many universities are there whose country's capital is Oslo?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x prop:capital <http://dbpedia.org/resource/Oslo> . ?uri onto:country ?x  . ?uri rdf:type onto:University}