Who were the team 2 when team 1 was Iwuanyanwu Nationale and the 1st leg score was 2-0?
CREATE TABLE "second_round" (
  "team_1" text,
  "agg" text,
  "team_2" text,
  "1st_leg" text,
  "2nd_leg" text
);
SELECT "team_2" FROM "second_round" WHERE "1st_leg"='2-0' AND "team_1"='iwuanyanwu nationale';