Complex sentence: The authors of today's Emblem of sovereign Kazakhstan were Zhandarbek Melibekov and Shota Ualikhanov who managed to win a hard competition in which participated 245 projects and 67 descriptions of the Emblem.
Split into simpler sentences: The authors of the Emblem are Zhandarbek Melibekov and Shota Ualikhanov who managed to win a hard competition. About 245 projects and 67 description designs of the future arms took part in final competition in which participated 245 projects and 67 descriptions of the Emblem.