Question: Which manufacturer of  Ford Y-block engine is the parent of  Ford Air Transport Service ?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Ford_Y-block_engine> <http://dbpedia.org/ontology/manufacturer> ?uri. <http://dbpedia.org/resource/Ford_Air_Transport_Service> <http://dbpedia.org/property/parent> ?uri}