Question: bhagvad geeta is a part of which great epic
[{'answer': 'Mahabharata', 'provenance': [{'wikipedia_id': '23277715', 'title': 'Bhagavad Gita', 'start_paragraph_id': 1, 'start_character': 156, 'end_paragraph_id': 1, 'end_character': 167, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]