Question: What is the military unit whose command structures are United States Department of the Navy and United States Department of Defense?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/ontology/commandStructure> <http://dbpedia.org/resource/United_States_Department_of_the_Navy> . ?uri <http://dbpedia.org/ontology/commandStructure> <http://dbpedia.org/resource/United_States_Department_of_Defense> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/MilitaryUnit>}