CREATE TABLE "singles_12" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score" text
);

Question: What day was the score for tournament of alcobaça 6–3, 2–6, 7–5?
SQL: SELECT "date" FROM "singles_12" WHERE "tournament"='alcobaça' AND "score"='6–3, 2–6, 7–5';

Question: What was the score for alcobaça when the opponent was in the final of xinyun han?
SQL: SELECT "score" FROM "singles_12" WHERE "tournament"='alcobaça' AND "opponent_in_the_final"='xinyun han';

Question: What was the score when the opponent was irena pavlovic and the surface was hard?
SQL: SELECT "score" FROM "singles_12" WHERE "surface"='hard' AND "opponent_in_the_final"='irena pavlovic';

Question: What was the opponent in the final when the score was 6–3, 2–6, 7–5?
SQL: SELECT "opponent_in_the_final" FROM "singles_12" WHERE "score"='6–3, 2–6, 7–5';

Question: What day was the surface clay and the score 6–1, 6–4?
SQL: SELECT "date" FROM "singles_12" WHERE "surface"='clay' AND "score"='6–1, 6–4';