Question: What is the religion of the ethnic group to which the relatives of Waxiang people belong?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Waxiang_people> <http://dbpedia.org/property/related> ?x . ?x <http://dbpedia.org/ontology/religion> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/EthnicGroup>}