Question: which nobel prize winner started career as an accountant in kolkata
[{'answer': 'Amartya Sen', 'provenance': [{'wikipedia_id': '1774396', 'title': 'List of people from Kolkata', 'start_paragraph_id': 99, 'start_character': 12, 'end_paragraph_id': 99, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Nobel laureates.\n'}]}]