CREATE TABLE table_70021 ("Season" FLOAT, "Host" CLOB, "Winners" CLOB, "Score" CLOB, "Runners-up" CLOB, "Third place" CLOB)

What is the season where Vasco da gama is the score?
SELECT "Season" FROM table_70021 WHERE "Score" = 'vasco da gama'
SELECT "Season" FROM "table_70021" WHERE "Score" = 'vasco da gama'