CREATE TABLE table_49958 ("Season" FLOAT, "Date" CLOB, "Home team" CLOB, "Score" CLOB, "Away team" CLOB, "Venue" CLOB, "Competition round" CLOB)

What is the score of the match on 3 March 1988 at the estadio nacional?
SELECT "Score" FROM table_49958 WHERE "Venue" = 'estadio nacional' AND "Date" = '3 march 1988'
SELECT "Score" FROM "table_49958" WHERE "Date" = '3 march 1988' AND "Venue" = 'estadio nacional'