CREATE TABLE table_40312 ("Tournament" TEXT, "2002" TEXT, "2004" TEXT, "2005" TEXT, "2006" TEXT, "2007" TEXT, "2008" TEXT, "2010" TEXT, "2011" TEXT, "2012" TEXT)

What 2006 has grand slam tournaments of 2010?
SELECT "2006" FROM table_40312 WHERE "2010" = 'grand slam tournaments'
SELECT "2006" FROM "table_40312" WHERE "2010" = 'grand slam tournaments'