Question: who owns the united nations building in new york
[{'answer': 'United Nations', 'provenance': [{'wikipedia_id': '188955', 'title': 'Headquarters of the United Nations', 'start_paragraph_id': 0, 'start_character': 20, 'end_paragraph_id': 0, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]