Question: which indian actor has won the most national awards
[{'answer': 'Amitabh Bachchan', 'provenance': [{'wikipedia_id': '3731898', 'title': 'National Film Award for Best Actor', 'start_paragraph_id': 3, 'start_character': 190, 'end_paragraph_id': 3, 'end_character': 206, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3731898', 'title': 'National Film Award for Best Actor', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 718, 'bleu_score': 0.728015412248717, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11516957712370335690}, 'section': 'Section::::Abstract.'}]}]