CREATE TABLE table_36086 ("Home  ( 1st leg ) " TEXT, "Home  ( 2nd leg ) " TEXT, "1st Leg" TEXT, "2nd leg" TEXT, "Aggregate" TEXT)

What Aggregate has a 2-1 1st leg, and is from Belgrano?
SELECT "Aggregate" FROM table_36086 WHERE "1st Leg" = '2-1' AND "Home (1st leg)" = 'belgrano'
SELECT "Aggregate" FROM "table_36086" WHERE "1st Leg" = '2-1' AND "Home (1st leg)" = 'belgrano'