Task: Explanation
Input (English): Although the archipelago may have been visited before by the Portuguese (who conquered Malacca City in 1511 and reached Maluku Islands in 1512 ), the earliest documented European expedition to the Philippines was that led by Ferdinand Magellan, in the service of the king of Spain. The expedition first sighted the mountains of Samar at dawn on the 16th March 1521, making landfall the following day at the small, uninhabited island of Homonhon at the mouth of the Leyte Gulf. On Easter Sunday, 31 March 1521, at Limasawa Island, Southern Leyte, as is stated in Pigafetta's Primo Viaggio Intorno El Mondo (First Voyage Around the World), Magellan solemnly planted a cross on the summit of a hill overlooking the sea and claimed for the king of Spain possession of the islands he had seen, naming them "Archipelago of Saint Lazarus". Question: What Filipino playright wrote a zarzuela about the archipelago that Ferdinand Magellan claimed for the king of Spain on Easter Sunday, 32 March, 1521? Answer: Severino Reyes
Output (English):  On Easter Sunday, 31 March 1521, at Limasawa Island, Southern Leyte, as is stated in Pigafettas Primo Viaggio Intorno El Mondo First Voyage Around the World, Magellan solemnly planted a cross on the summit of a hill overlooking the sea and claimed for the king of Spain possession of the islands he had seen, naming them Archipelago of Saint Lazarus.