What rounds did Roy Salvadori drive for David Brown Corporation?
CREATE TABLE table_name_98 (
    rounds VARCHAR,
    entrant VARCHAR,
    driver VARCHAR
)
SELECT rounds FROM table_name_98 WHERE entrant = "david brown corporation" AND driver = "roy salvadori"
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 rounds did Roy Salvadori drive for David Brown Corporation? ### Input: CREATE TABLE table_name_98 (
    rounds VARCHAR,
    entrant VARCHAR,
    driver VARCHAR
) ### Response: SELECT rounds FROM table_name_98 WHERE entrant = "david brown corporation" AND driver = "roy salvadori"