Question: List all the presidents of the school which had atleast one of the president as Queen Noor of Jordan ?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/president> <http://dbpedia.org/resource/Queen_Noor_of_Jordan> . ?x <http://dbpedia.org/ontology/president> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/School>}