Question: Give me all martial artists trained by Joe Schilling.
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/trainer> <http://dbpedia.org/resource/Joe_Schilling> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/MartialArtist>}