Sierra Leone, officially the Republic of Sierra Leone, is a country in West Africa that is bordered by Guinea to the northeast, Liberia to the southeast, and the Atlantic Ocean to the southwest. Sierra Leone is a constitutional republic with a directly elected president and a unicameral legislature. Wikipedia

Changge is a city of Xuchang, Henan Province, China. In the Han Dynasty, it was known as Changshe is a county-level city in the central of Henan province in China. It ranges in latitude from 34°09' to 34° 20'N and longitude from 113° 34' to 114°08'E. Wikipedia