Question: What is the magazine which have been  founded by Ralph J. Gleason?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/founder> <http://dbpedia.org/resource/Ralph_J._Gleason> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Magazine>}