What type of surface did Thomaz Bellucci play against tommy robredo?
CREATE TABLE table_name_66 (
    surface VARCHAR,
    opponent VARCHAR
)
SELECT surface FROM table_name_66 WHERE opponent = "tommy robredo"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What type of surface did Thomaz Bellucci play against tommy robredo? ### Input: CREATE TABLE table_name_66 (
    surface VARCHAR,
    opponent VARCHAR
) ### Response: SELECT surface FROM table_name_66 WHERE opponent = "tommy robredo"