Question: who won silver medal in olympics 2016 from india
[{'answer': 'badminton player P.V. Sindhu'}, {'provenance': [{'wikipedia_id': '43781815', 'title': 'India at the 2016 Summer Olympics', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 833, 'bleu_score': 0.9213847203755321, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8119666994038215721}, 'section': 'Section::::Abstract.'}]}]