CREATE TABLE "round_of_16" (
  "team_1" text,
  "agg" text,
  "team_2" text,
  "1st_leg" text,
  "2nd_leg" text
);

Question: What is the team 2 for the match with a team 1 of Panathinaikos?
SQL: SELECT "team_2" FROM "round_of_16" WHERE "team_1"='panathinaikos';

Question: What was the first leg score for the match with a team 1 of Panathinaikos?
SQL: SELECT "1st_leg" FROM "round_of_16" WHERE "team_1"='panathinaikos';

Question: What is the 2nd leg score for the match with a team 2 of Werder Bremen?
SQL: SELECT "2nd_leg" FROM "round_of_16" WHERE "team_2"='werder bremen';