Question: when was the last time india won gold in olympics
[{'answer': '2008', 'provenance': [{'wikipedia_id': '3630757', 'title': 'India at the Olympics', 'start_paragraph_id': 20, 'start_character': 7, 'end_paragraph_id': 20, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::History.:Recent history.\n'}]}]