SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/United_World_College_of_Costa_Rica> <http://dbpedia.org/property/president> ?uri. <http://dbpedia.org/resource/United_World_Colleges> <http://dbpedia.org/property/president> ?uri . }
Who is the President of the United World College of Costa Rica and United World Colleges?
SELECT DISTINCT ?w WHERE { resource:United_World_Colleges property:president ?w . . resource:United_World_College_of_Costa_Rica property:president ?w }
Nelson Mandela
[Nelson Mandela] is the president of both United World College of Costa Rica and United World Colleges.
[Nelson Mandela] is president of both the places.