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:
| Edition | Round | Date | Partner | Surface | Opponents | Result |
| --- | --- | --- | --- | --- | --- | --- |
| 1988 World Group I | R1 | December 5, 1988 | Galia Angelova | Hard | Jonna Jonerup Maria Lindström | 6–2, 6–7 (5–7) , 1–6 |
| 1990 World Group I | PO | July 23, 1990 | Dora Rangelova | Hard | Amy Jonsson-Råholt Astrid Sunde | 4–6, 6–2, 6–3 |
| 1992 World Group I Play-offs | RPO | July 16, 1992 | Magdalena Maleeva | Hard | Ruxandra Dragomir Irina Spîrlea | 6–7 (5–7) , 2–6 |
| 1992 World Group I Play-offs | RPO | July 17, 1992 | Katerina Maleeva | Hard | Virág Csurgó Kata Györke | 7–6 (8–6) , 4–6, 6–1 |
| ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ | ↓Representing [[&#124;]]↓ |
| 1997 World Group I | QF | March 2, 1997 | Barbara Rittner | Hard (I) | Eva Martincová Ludmila Richterová | 7–6 (7–3) , 6–2 |
Question:
What was the surface on march 2, 1997?
Answer:
Hard (I)