query: What country borders Kazakhstan?
passage: Geography of Kazakhstan
Kazakhstan is located in Central Asia and Eastern Europe at Coordinates: . With an area of about 2,724,800 square kilometers, Kazakhstan is more than twice the combined size of the other four Central Asian states and 60% larger than Alaska. The country borders Turkmenistan, Uzbekistan, and Kyrgyzstan to the south; Russia to the north; Russia and the Caspian Sea to the west; and China's Xinjiang Uygur Autonomous Region to the east.
passage: List of airports in Tajikistan
Tajikistan, officially the Republic of Tajikistan, is a mountainous landlocked country in Central Asia. Afghanistan borders it to the south, Uzbekistan to the west, Kyrgyzstan to the north, and People's Republic of China to the east. Tajikistan also lies adjacent to Pakistan, separated by the narrow Wakhan Corridor. Its capital city is Dushanbe.