Question: List the driver of SA MArino Grand Prix is also the Pole driver of Canadian Grand Proix ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
 SELECT DISTINCT ?uri WHERE { res:1999_San_Marino_Grand_Prix prop:firstDriver ?uri. res:1997_Canadian_Grand_Prix prop:poleDriver ?uri}