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

Question: What is Team 1, when Team 2 is Saint Louis?
SQL: SELECT "team_1" FROM "preliminary_round" WHERE "team_2"='saint louis';

Question: What is Agg., when Team 2 is Mukungwa?
SQL: SELECT "agg" FROM "preliminary_round" WHERE "team_2"='mukungwa';