Question: Which architect was responsible for designing the building standing on the original site of a Spanish explorer, conquistador, and first Governor of Puerto Rico?
{'answer': 'Henry C. Trost', 'supporting_facts': [['Anson Mills Building', 0], ['Anson Mills Building', 1], ['Anson Mills Building', 2], ['Juan Ponce de León', 0], ['Juan Ponce de León', 1]]}