Table: hrbaty_matches_2
Columns: date
tournament
surface
opponent
score

Question: WHich Surface has an Opponent of gustavo kuerten?
SQL: SELECT "surface" FROM hrbaty_matches_2 WHERE "opponent" = 'gustavo kuerten'

Question: Which Surface has a Tournament of st. petersburg , russia?
SQL: SELECT "surface" FROM hrbaty_matches_2 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 hrbaty_matches_2 WHERE "surface" = 'hard (i)' AND "tournament" = 'brighton , united kingdom'

Question: Which Opponent  has a Score of 3–6, 5–7?
SQL: SELECT "opponent" FROM hrbaty_matches_2 WHERE "score" = '3–6, 5–7'

Question: When has a Tournament of palermo , italy?
SQL: SELECT "date" FROM hrbaty_matches_2 WHERE "tournament" = 'palermo , italy'

Question: Which Opponent is on 29 september 1997?
SQL: SELECT "opponent" FROM hrbaty_matches_2 WHERE "date" = '29 september 1997'