Question: Which companies work in the aerospace industry as well as in medicine?
SPARQL query:
PREFIX onto:  <http://dbpedia.org/ontology/>
PREFIX res:  <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT DISTINCT ?uri 
WHERE { 
        ?uri rdf:type onto:Company  .
        ?uri onto:industry res:Aerospace . 
        ?uri onto:industry res:Medicine .
}