Question: What is the nationality of the golf player who won the  2002 Players Championship ?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/2002_Players_Championship> <http://dbpedia.org/ontology/champion> ?x . ?x <http://dbpedia.org/ontology/nationality> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/GolfPlayer>}