CREATE TABLE table_12853 ("Tournament" CLOB, "1997" CLOB, "1998" CLOB, "1999" CLOB, "2000" CLOB, "2001" CLOB, "2002" CLOB, "2003" CLOB, "2004" CLOB, "2005" CLOB, "2006" CLOB, "2007" CLOB, "2008" CLOB, "2009" CLOB, "2010" CLOB, "2011" CLOB, "2012" CLOB)

Which 1997 has sf as the 2002?
SELECT "1997" FROM table_12853 WHERE "2002" = 'sf'
SELECT "1997" FROM "table_12853" WHERE "2002" = 'sf'