How many games were played by the Vélez Sársfield team from 1989-90?
CREATE TABLE "relegation" (
  "team" text,
  "average" text,
  "points" real,
  "played" real,
  "1988_89" text,
  "1989_90" text,
  "1990_1991" real
);
SELECT "1989_90" FROM "relegation" WHERE "team"='Vélez Sársfield';