Question: Who was partnering when nueza silva played against Greece?
SQL: SELECT "Partnering" FROM "2-16893837-4" WHERE "Against" = 'Greece';

Question: What was the round when nueza silva played against Greece?
SQL: SELECT "Round" FROM "2-16893837-4" WHERE "Against" = 'Greece';

Question: Who were the opponents during the 2006 Fed Cup Europe/Africa Group II against Greece?
SQL: SELECT "Opponents" FROM "2-16893837-4" WHERE "Edition" = '2006 Fed Cup Europe/Africa Group II' AND "Against" = 'Greece';