user: Question: How many sets were played in 2007 at the tournament that had 4R in 2011 and 2R in 2009?
Columns: ['Tournament', '2007', '2008', '2009', '2011', '2012', '2013']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments', 'Grand Slam Tournaments']
SQL:

assistant: SELECT COUNT("2007") FROM "Table" WHERE "2011" = '4R' AND "2009" = '2R';