What is the name of the player with a transfer window in summer, an undisclosed transfer fee, and is moving from brussels?
CREATE TABLE "players_in" (
  "name" text,
  "country" text,
  "type" text,
  "moving_from" text,
  "transfer_window" text,
  "transfer_fee" text
);
SELECT "name" FROM "players_in" WHERE "transfer_window"='summer' AND "transfer_fee"='undisclosed' AND "moving_from"='brussels';