Question: What are some products of the company whose parent is BBC?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/parent> <http://dbpedia.org/resource/BBC> . ?x <http://dbpedia.org/property/products> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Company>}