CREATE TABLE "doubles_performance_timeline" (
  "tournament" text,
  "2002" text,
  "2004" text,
  "2005" text,
  "2006" text
);

Question: What shows for 2006 when 2002 is Grand Slam Tournaments?
SQL: SELECT "2006" FROM "doubles_performance_timeline" WHERE "2002"='grand slam tournaments';

Question: What shows for 2002 when 2006 is Grand Slam Tournaments?
SQL: SELECT "2002" FROM "doubles_performance_timeline" WHERE "2006"='grand slam tournaments';

Question: What shows for 2005 when 2002 shows 0–1?
SQL: SELECT "2005" FROM "doubles_performance_timeline" WHERE "2002"='0–1';

Question: What shows for 2006 when 2002 is 0–1?
SQL: SELECT "2006" FROM "doubles_performance_timeline" WHERE "2002"='0–1';

Question: What shows for 2002 when the 2004 is A, and the 2005 is 1r?
SQL: SELECT "2002" FROM "doubles_performance_timeline" WHERE "2004"='a' AND "2005"='1r';

Question: What shows for 2004 when 2005 is A, 2006 is A, tournament is US Open?
SQL: SELECT "2004" FROM "doubles_performance_timeline" WHERE "2005"='a' AND "2006"='a' AND "tournament"='us open';