Question: Who is the prime minister of Michael Jeffery who is also the minister of Williuam Deane ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { res:Michael_Jeffery prop:primeminister ?uri. res:William_Deane onto:primeMinister ?uri}