CREATE TABLE table_6339 ("Name" TEXT, "Circuit" TEXT, "Date" TEXT, "Winning driver" TEXT, "Winning constructor" TEXT, "Report" TEXT)

Which Winning constructor has a Winning driver of felice nazzaro?
SELECT "Winning constructor" FROM table_6339 WHERE "Winning driver" = 'felice nazzaro'
SELECT "Winning constructor" FROM "table_6339" WHERE "Winning driver" = 'felice nazzaro'