Question: what is the main source of income in india
[{'answer': 'agricultural sector'}, {'provenance': [{'wikipedia_id': '1472206', 'title': 'Economy of India', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 763, 'bleu_score': 0.585362988490656, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9424118653376816435}, 'section': 'Section::::Abstract.'}]}]