Question: who controlled the economy of the incan empire
[{'answer': 'Inca rulers', 'provenance': [{'wikipedia_id': '15319', 'title': 'Inca Empire', 'start_paragraph_id': 5, 'start_character': 190, 'end_paragraph_id': 5, 'end_character': 201, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15319', 'title': 'Inca Empire', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 460, 'bleu_score': 0.693960183980144, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4946155644602556434}, 'section': 'Section::::Abstract.'}]}]