Task: Question Generation
Input (English): Okinawa Churaumi Aquarium -- The Okinawa Churaumi Aquarium (沖縄美ら海水族館, Okinawa Churaumi Suizokukan) is located within the Ocean Expo Park in Okinawa, Japan. It welcomed its 20 millionth visitor on 30 March 2010 and is a member of the Japanese Association of Zoos and Aquariums (JAZA). It was the largest aquarium in the world until it was surpassed by the Georgia Aquarium in 2005. The aquarium has the theme of ``Encounter the Okinawan Sea''.
Output (English): okinawa world's largest churaumi aquarium in japan