Question: Which region of Bannock is the origin od Spaghetti squash ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Spaghetti_squash> <http://dbpedia.org/ontology/origin> ?uri. <http://dbpedia.org/resource/Bannock_(food)> <http://dbpedia.org/ontology/region> ?uri}