Question: Who started at the pole position in both 1997 canadian grand prix and the 94 spanish one?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT ?uri WHERE { res:1997_Canadian_Grand_Prix prop:poleDriver ?uri. res:1994_Spanish_Grand_Prix prop:poleDriver ?uri . }