Which Surface has an Opponent of oleksandra kravets?
CREATE TABLE table_name_99 (surface VARCHAR, opponent VARCHAR)
SELECT surface FROM table_name_99 WHERE opponent = "oleksandra kravets"
### Context: CREATE TABLE table_name_99 (surface VARCHAR, opponent VARCHAR) ### Question: Which Surface has an Opponent of oleksandra kravets? ### Answer: SELECT surface FROM table_name_99 WHERE opponent = "oleksandra kravets"