Question: Which anti-apartheid activist graduated from the University of South Africa?
SPARQL:
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX res: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri 
WHERE {
	?uri rdf:type text:"anti-apartheid activist" .
        ?uri dbo:almaMater res:University_of_South_Africa .
}