CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2001" text,
  "2002" text,
  "2003" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);

Question: What was the value in 2006 when 2003 was not held and 2012 was A?
SQL: SELECT "2006" FROM "singles_performance_timeline" WHERE "2003"='not held' AND "2012"='a';

Question: What was the 2008 value when 2012 was Grand Slam Tournaments?
SQL: SELECT "2008" FROM "singles_performance_timeline" WHERE "2012"='grand slam tournaments';

Question: What was the value in 2008 when 2012 was 1R, 2010 was A, and 2005 was A?
SQL: SELECT "2008" FROM "singles_performance_timeline" WHERE "2012"='1r' AND "2010"='a' AND "2005"='a';

Question: What was the value in 2003 when 2006 was WTA Premier Mandatory Tournaments?
SQL: SELECT "2003" FROM "singles_performance_timeline" WHERE "2006"='wta premier mandatory tournaments';

Question: What was the value in 2009 when 2005 was A for the Australian Open?
SQL: SELECT "2009" FROM "singles_performance_timeline" WHERE "2005"='a' AND "tournament"='australian open';

Question: What was the value in 2012 when 2002 was Q1 and 2010 was 1R?
SQL: SELECT "2012" FROM "singles_performance_timeline" WHERE "2002"='q1' AND "2010"='1r';