Question: Which weapons did Heckler & Koch develop?
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 rdf:type onto:Weapon . ?uri prop:designer <http://dbpedia.org/resource/Heckler_&_Koch> .  }