Question: how many medals did the us win in 2016 olympics
[{'answer': '121', 'provenance': [{'wikipedia_id': '43777919', 'title': 'United States at the 2016 Summer Olympics', 'start_paragraph_id': 2, 'start_character': 98, 'end_paragraph_id': 2, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]