Question: Among the companies who has product named Chinook who has a key person as Dennis Muilenburg ?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/keyPeople> <http://dbpedia.org/resource/Dennis_Muilenburg> . ?uri <http://dbpedia.org/property/products> <http://dbpedia.org/resource/Boeing_CH-47_Chinook>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Company>}