CREATE TABLE "transfers_out" (
  "nat" text,
  "name" text,
  "type" text,
  "transfer_window" text,
  "transfer_fee" text
);

Question: Willy Sagnol with a type as career end had what has the transfer fee?
SQL: SELECT "transfer_fee" FROM "transfers_out" WHERE "type"='career end' AND "name"='willy sagnol';

Question: Marcell Jansen with a transfer window of summer, and of transfer as type is from what nation?
SQL: SELECT "nat" FROM "transfers_out" WHERE "transfer_window"='summer' AND "type"='transfer' AND "name"='marcell jansen';

Question: Marcell Jansen of the nation GER has what for the type?
SQL: SELECT "type" FROM "transfers_out" WHERE "nat"='ger' AND "name"='marcell jansen';

Question: What player had a transfer window of winter, and free as the transfer fee?
SQL: SELECT "name" FROM "transfers_out" WHERE "transfer_window"='winter' AND "transfer_fee"='free';

Question: Which player from GER has a transfer window of summer, and a transfer fee of n/a?
SQL: SELECT "name" FROM "transfers_out" WHERE "transfer_window"='summer' AND "nat"='ger' AND "transfer_fee"='n/a';