CREATE TABLE table_4678 ("Team" TEXT, "Constructor" TEXT, "Motorcycle" TEXT, "Rider" TEXT, "Rounds" TEXT)

Which round has the mv agusta f4 1000 mt?
SELECT "Rounds" FROM table_4678 WHERE "Motorcycle" = 'mv agusta f4 1000 mt'
SELECT "Rounds" FROM "table_4678" WHERE "Motorcycle" = 'mv agusta f4 1000 mt'