what is the surface when the round is gii play-offs and the edition is 2009 fed cup europe/africa group ii?
CREATE TABLE "singles_15" (
  "edition" text,
  "round" text,
  "date" text,
  "against" text,
  "surface" text,
  "opponent" text,
  "result" text
);
SELECT "surface" FROM "singles_15" WHERE "round"='gii play-offs' AND "edition"='2009 fed cup europe/africa group ii';