Task: Sentence Expansion
Input (English): Kagoshima ( 鹿児島市 , Kagoshima-shi ) is a Japanese city in Kagoshima Prefecture on the island of Kyushu .
Output (English): Kagoshima ( 鹿児島市 , Kagoshima-shi , -RSB- ) is the capital city of Kagoshima Prefecture at the south western tip of the island of Kyushu in Japan , and the largest city in the prefecture by some margin .