Question: who was the leader of the dalit movement in india
[{'answer': 'B.R. Ambedkar'}, {'provenance': [{'wikipedia_id': '591605', 'title': 'Dalit Buddhist movement', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 314, 'bleu_score': 0.787603171723502, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8333256424904784027}, 'section': 'Section::::Abstract.'}]}]