CREATE TABLE table_53035 ("Team #1" TEXT, "Agg." TEXT, "Team #2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What was the aggregate for a team #2 of Okk Beograd?
SELECT "Agg." FROM table_53035 WHERE "Team #2" = 'okk beograd'
SELECT "Agg." FROM "table_53035" WHERE "Team #2" = 'okk beograd'