Question: What is the company whose one of the key person is Dennis Muilenburg and produces Boeing CH-47 Chinook ?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE {?uri prop:keyPeople <http://dbpedia.org/resource/Dennis_Muilenburg> . ?uri onto:product <http://dbpedia.org/resource/Boeing_CH-47_Chinook>  . ?uri rdf:type onto:Company}