Question: where is the headquarters of asian infrastructure investment bank
[{'answer': 'Beijing , China', 'provenance': [{'wikipedia_id': '43140311', 'title': 'Asian Infrastructure Investment Bank', 'start_paragraph_id': 9, 'start_character': 273, 'end_paragraph_id': 9, 'end_character': 288, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]