Task: Explanation
Input (English): The Grass Mountain Chateau () is a former residence of late President of the Republic of China Chiang Kai-shek located in Beitou District, Taipei, Taiwan in Yangmingshan National Park. Question: What was the birth date of the president who was a former resident of Grass Mountain Chateau? Answer: October 31, 1887
Output (English): The Grass Mountain Chateau  is a former residence of late President of the Republic of China Chiang Kaishek located in Beitou District, Taipei, Taiwan in Yangmingshan National Park.