Question: Which weapons did Heckler & Koch develop?
SPARQL:
SELECT DISTINCT ?uri WHERE {  ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Weapon> . ?uri <http://dbpedia.org/property/designer> <http://dbpedia.org/resource/Heckler_&_Koch> .  }