what is 2010 when 2009 is w and 2007 is qf?
CREATE TABLE table_47840 (
    "Tournament" text,
    "1998" text,
    "1999" text,
    "2000" text,
    "2001" text,
    "2002" text,
    "2003" text,
    "2004" text,
    "2005" text,
    "2006" text,
    "2007" text,
    "2008" text,
    "2009" text,
    "2010" text,
    "2011" text,
    "2012" text,
    "2013" text
)
SELECT "2010" FROM table_47840 WHERE "2009" = 'w' AND "2007" = 'qf'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: what is 2010 when 2009 is w and 2007 is qf? ### Input: CREATE TABLE table_47840 (
    "Tournament" text,
    "1998" text,
    "1999" text,
    "2000" text,
    "2001" text,
    "2002" text,
    "2003" text,
    "2004" text,
    "2005" text,
    "2006" text,
    "2007" text,
    "2008" text,
    "2009" text,
    "2010" text,
    "2011" text,
    "2012" text,
    "2013" text
) ### Response: SELECT "2010" FROM table_47840 WHERE "2009" = 'w' AND "2007" = 'qf'