Question: who was the maratha peshwa when the third battle of panipat was fought
[{'answer': 'Madhavrao', 'provenance': [{'wikipedia_id': '142027', 'title': 'Third Battle of Panipat', 'start_paragraph_id': 3, 'start_character': 192, 'end_paragraph_id': 3, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '142027', 'title': 'Third Battle of Panipat', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 678, 'bleu_score': 0.764446727635485, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13893596433152865474}, 'section': 'Section::::Abstract.'}]}]