Complex sentence: Australia, Belarus, Kazahkstan, Russia, Slovenia, Ukraine, and Uzbekistan won their first Winter Olympic Medals, with Kazahkstan, Russia, Ukraine, and Uzbekistan winning their first Winter Olympic Gold Medals.
Split into simpler sentences: Australia, Belarus, Kazahkstan, Russia, Slovenia, Ukraine, and Uzbekistan. Four of these, Kazahkstan, Russia, Ukraine, and Uzbekistan, won their first Winter Olympic Gold Medals.