Question: who is regarded as the father of green revolution
[{'answer': 'Mankombu Sambasivan Swaminathan', 'provenance': [{'wikipedia_id': '841432', 'title': 'M. S. Swaminathan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '841432', 'title': 'M. S. Swaminathan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 737, 'bleu_score': 0.7408403278875201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 938456648988480941}, 'section': 'Section::::Abstract.'}]}]