CREATE TABLE table_71856 ("Team 1" TEXT, "Agg." TEXT, "Team 2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What Team 1 has union douala as Team 2?
SELECT "Team 1" FROM table_71856 WHERE "Team 2" = 'union douala'
SELECT "Team 1" FROM "table_71856" WHERE "Team 2" = 'union douala'