CREATE TABLE "european_poker_tour" (
  "date" text,
  "city" text,
  "event" text,
  "winner" text,
  "prize" text
);

Question: What is the Date, when the Winner is Aaron Gustavson?
SQL: SELECT "date" FROM "european_poker_tour" WHERE "winner"='aaron gustavson';

Question: What is the Date, when the City is Warsaw?
SQL: SELECT "date" FROM "european_poker_tour" WHERE "city"='warsaw';

Question: What is the Prize, when the Winner is Aaron Gustavson?
SQL: SELECT "prize" FROM "european_poker_tour" WHERE "winner"='aaron gustavson';

Question: Who is the Winner, when the City is Berlin?
SQL: SELECT "winner" FROM "european_poker_tour" WHERE "city"='berlin';