Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Tournament | Surface | Opponent | Score |
| --- | --- | --- | --- | --- |
| 29 September 1997 | Palermo , Italy | Clay | Alberto Berasategui | 4–6, 2–6 |
| 17 April 2000 | Monte Carlo , Monaco | Clay | Cédric Pioline | 4–6, 6–7 (3–7) , 6–7 (6–8) |
| 6 November 2000 | St. Petersburg , Russia | Hard (i) | Marat Safin | 6–2, 4–6, 4–6 |
| 20 November 2000 | Brighton , United Kingdom | Hard (i) | Tim Henman | 2–6, 2–6 |
| 6 January 2003 | Auckland , New Zealand | Hard | Gustavo Kuerten | 3–6, 5–7 |
| 17 May 2004 | Casablanca , Morocco | Clay | Santiago Ventura | 3–6, 6–1, 4–6 |
| 30 October 2006 | Paris , France | Carpet (i) | Nikolay Davydenko | 1–6, 2–6, 2–6 |
Question:
WHich Surface has an Opponent of gustavo kuerten?
Answer:
Hard