CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "1990" text,
  "1991" text,
  "1992" text,
  "1993" text,
  "1994" text,
  "1995" text,
  "1996" text,
  "1997" text,
  "1998" text,
  "1999" text,
  "2000" text,
  "2001" text,
  "2002" text,
  "2003" text,
  "2004" text,
  "2005" text,
  "2006" text,
  "2007" text,
  "2008" text
);

Question: What shows for 1998 when 1996 is 1R, and 2002 is not held?
SQL: SELECT "1998" FROM "singles_performance_timeline" WHERE "1996"='1r' AND "2002"='not held';

Question: What is the 1996 when the 1994 is A, the 2003 is A, and the 2001 is 1R?
SQL: SELECT "1996" FROM "singles_performance_timeline" WHERE "1994"='a' AND "2003"='a' AND "2001"='1r';

Question: What shows for 1991 when 2002 is 2R?
SQL: SELECT "1991" FROM "singles_performance_timeline" WHERE "2002"='2r';

Question: What shows for 2006 when 1999 is Grand Slam Tournaments?
SQL: SELECT "2006" FROM "singles_performance_timeline" WHERE "1990"='grand slam tournaments';

Question: What shows for 2006 when 2000 is 1r, 1996 is A, and Tournament is Cincinnati Masters?
SQL: SELECT "2006" FROM "singles_performance_timeline" WHERE "2000"='1r' AND "1996"='a' AND "tournament"='cincinnati masters';

Question: What is the Tournament when the 1990 is Olympic Games?
SQL: SELECT "tournament" FROM "singles_performance_timeline" WHERE "1990"='olympic games';