CREATE TABLE "fed_cup_doubles_performances_10" (
  "edition" real,
  "zone" text,
  "round" text,
  "date" text,
  "against" text,
  "surface" text,
  "partner" text,
  "opponents" text,
  "result" text
);

Question: Which zone had mădălina gojnea monica niculescu as the opponent?
SQL: SELECT "zone" FROM "fed_cup_doubles_performances_10" WHERE "opponents"='mădălina gojnea monica niculescu';

Question: Who was against the opponents, mădălina gojnea monica niculescu?
SQL: SELECT "against" FROM "fed_cup_doubles_performances_10" WHERE "opponents"='mădălina gojnea monica niculescu';

Question: What was the surface on the game with margit rüütel anett schutting as the opponent?
SQL: SELECT "surface" FROM "fed_cup_doubles_performances_10" WHERE "opponents"='margit rüütel anett schutting';

Question: What is the zone of the game played against Estonia?
SQL: SELECT "zone" FROM "fed_cup_doubles_performances_10" WHERE "against"='estonia';