Question: Which saints were the messengers of Islam?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/veneratedIn> <http://dbpedia.org/resource/Islam>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Saint>}