Task: Question Generation
Input (English): Tuvalu (i/tuːˈvɑːluː/ too-VAH-loo or /ˈtuːvəluː/ TOO-və-loo), formerly known as the Ellice Islands, is a Polynesian island nation located in the Pacific Ocean, midway between Hawaii and Australia. It comprises three reef islands and six true atolls spread out between the latitude of 5° to 10° south and longitude of 176° to 180°, west of the International Date Line. Its nearest neighbours are Kiribati, Nauru, Samoa and Fiji. Tuvalu has a population of 10,640 (2012 census). The total land area of the islands of Tuvalu is 26 square kilometres (10 sq mi).
Output (English): What originally formed the Tuvalu islands?