CREATE TABLE "doubles_performance_timeline" (
  "tournament" text,
  "2002" text,
  "2003" text,
  "2004" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);

Question: What shows for 2010 when 2007 is a and 2004 is 2r?
SQL: SELECT "2010" FROM "doubles_performance_timeline" WHERE "2007"='a' AND "2004"='2r';

Question: What is the 2005 when the 2008 shows grand slam tournaments?
SQL: SELECT "2005" FROM "doubles_performance_timeline" WHERE "2008"='grand slam tournaments';

Question: What shows for 2002 when 2010 shows 69?
SQL: SELECT "2002" FROM "doubles_performance_timeline" WHERE "2010"='69';

Question: What shows for 2010 when 2005 shows 1r?
SQL: SELECT "2010" FROM "doubles_performance_timeline" WHERE "2005"='1r';