Question: who were the leaders of the mauryan empire
[{'answer': 'Chandragupta', 'provenance': [{'wikipedia_id': '554578', 'title': 'Maurya Empire', 'start_paragraph_id': 1, 'start_character': 107, 'end_paragraph_id': 1, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Bindusara', 'provenance': [{'wikipedia_id': '554578', 'title': 'Maurya Empire', 'start_paragraph_id': 3, 'start_character': 340, 'end_paragraph_id': 3, 'end_character': 349, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Ashoka', 'provenance': [{'wikipedia_id': '554578', 'title': 'Maurya Empire', 'start_paragraph_id': 1, 'start_character': 496, 'end_paragraph_id': 1, 'end_character': 502, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Dasharatha'}, {'answer': 'Samprati', 'provenance': [{'wikipedia_id': '554578', 'title': 'Maurya Empire', 'start_paragraph_id': 56, 'start_character': 368, 'end_paragraph_id': 56, 'end_character': 376, 'bleu_score': 1.0, 'section': 'Section::::Religion.:Jainism.\n'}]}, {'answer': 'Shalishuka'}, {'answer': 'Devavarman'}, {'answer': 'Shatadhanvan'}, {'answer': 'Brihadratha', 'provenance': [{'wikipedia_id': '554578', 'title': 'Maurya Empire', 'start_paragraph_id': 42, 'start_character': 66, 'end_paragraph_id': 42, 'end_character': 77, 'bleu_score': 1.0, 'section': 'Section::::History.:Decline.\n'}]}]