CREATE TABLE table_6340 ("Name" CLOB, "Circuit" CLOB, "Date" CLOB, "Winning driver" CLOB, "Winning constructor" CLOB, "Report" CLOB)

Who is Winning driver on 18 may?
SELECT "Winning driver" FROM table_6340 WHERE "Date" = '18 may'
SELECT "Winning driver" FROM "table_6340" WHERE "Date" = '18 may'