What is 1995 Grand Slam Tournament if 1990 is LQ?
CREATE TABLE "singles_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
);
SELECT "1995" FROM "singles_performance_timeline" WHERE "1990"='lq';