user: Question: How many poles does the European F3 Open series have?
Columns: ['Season', 'Series', 'Team', 'Races', 'Wins', 'Poles', 'F/Laps', 'Podiums', 'Points', 'Position']
Types: ['real', 'text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [2009.0, 'Italian Formula Renault 2.0', 'Jenzer Motorsport', 14.0, 2.0, 2.0, 0.0, 2.0, 228.0, '4th']
SQL:

assistant: SELECT SUM("Poles") FROM "Table" WHERE "Series" = 'European F3 Open';