What is 1989, when 1999 is F, and when 1994 is 2R?
CREATE TABLE "doubles_performance_timeline" (
  "tournament" text,
  "1987" text,
  "1988" text,
  "1989" 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,
  "career_sr" text,
  "career_win_loss" text
);
SELECT "1989" FROM "doubles_performance_timeline" WHERE "1999"='f' AND "1994"='2r';