Question: who won the gold medal in basketball 2016
[{'answer': 'United States', 'provenance': [{'wikipedia_id': '36721628', 'title': 'Basketball at the 2016 Summer Olympics', 'start_paragraph_id': 2, 'start_character': 209, 'end_paragraph_id': 2, 'end_character': 222, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]