CREATE TABLE "singles_13_6_7" (
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent" text,
  "score" text
);

Question: WHich Surface has an Opponent of gustavo kuerten?
SQL: SELECT "surface" FROM "singles_13_6_7" WHERE "opponent"='gustavo kuerten';

Question: Which Surface has a Tournament of st. petersburg , russia?
SQL: SELECT "surface" FROM "singles_13_6_7" WHERE "tournament"='st. petersburg , russia';

Question: When is the Surface of hard (i), and a Tournament of brighton , united kingdom taken?
SQL: SELECT "date" FROM "singles_13_6_7" WHERE "surface"='hard (i)' AND "tournament"='brighton , united kingdom';

Question: Which Opponent  has a Score of 3–6, 5–7?
SQL: SELECT "opponent" FROM "singles_13_6_7" WHERE "score"='3–6, 5–7';

Question: When has a Tournament of palermo , italy?
SQL: SELECT "date" FROM "singles_13_6_7" WHERE "tournament"='palermo , italy';

Question: Which Opponent is on 29 september 1997?
SQL: SELECT "opponent" FROM "singles_13_6_7" WHERE "date"='29 september 1997';