CREATE TABLE "titles" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);

Question: Which has a Score of 6–1, 3–0 ret.?
SQL: SELECT "surface" FROM "titles" WHERE "score"='6–1, 3–0 ret.';

Question: Which Surface is on 23 january 2011?
SQL: SELECT "surface" FROM "titles" WHERE "date"='23 january 2011';

Question: When has a Surface of hard, a Tournament of wrexham , great britain?
SQL: SELECT "date" FROM "titles" WHERE "surface"='hard' AND "tournament"='wrexham , great britain';

Question: Which Surface has an Opponent in the final of stéphane robert?
SQL: SELECT "surface" FROM "titles" WHERE "opponent_in_the_final"='stéphane robert';

Question: What kind of Surface has a Score of 6–4, 0–6, 6–2?
SQL: SELECT "surface" FROM "titles" WHERE "score"='6–4, 0–6, 6–2';