What is the Copa Libertadores 1999 result for team grêmio, who did not qualify for Copa Conmebol 1999?
CREATE TABLE "brazilian_clubs_in_international_competi" (
  "team" text,
  "copa_libertadores_1999" text,
  "copa_mercosur_1999" text,
  "copa_conmebol_1999" text,
  "intercontinental_cup_1999" text
);
SELECT "copa_libertadores_1999" FROM "brazilian_clubs_in_international_competi" WHERE "copa_conmebol_1999"='did not qualify' AND "team"='grêmio';