Question: What cars were built upon the cars which were assembled in Canada?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/assembly> <http://dbpedia.org/resource/Canada> . ?x <http://dbpedia.org/ontology/predecessor> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Automobile>}
Answer: The predecessors of the automobiles assembled in Canada are [answer].