What was the surface made of in the contest where Paula Ormaechea was the partner?
CREATE TABLE "doubles_8_10" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT "surface" FROM "doubles_8_10" WHERE "partner"='paula ormaechea';