Question: Whose units are responsible for close air support?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/role> <http://dbpedia.org/resource/Close_air_support> . ?uri <http://dbpedia.org/ontology/militaryUnit> ?x  . }
Answer: The people whose military unit's role is close air support are [answer].