CREATE TABLE table_51507 ("Tournament" TEXT, "2006" TEXT, "2007" TEXT, "2008" TEXT, "2009" TEXT, "2010" TEXT, "2011" TEXT, "2012" TEXT, "2013" TEXT)

What's the value for 2007 when 2011 is a and 2009 is q2?
SELECT "2007" FROM table_51507 WHERE "2011" = 'a' AND "2009" = 'q2'
SELECT "2007" FROM "table_51507" WHERE "2009" = 'q2' AND "2011" = 'a'