Question: who is in charge of american monetary policy
[{'answer': 'the Federal Reserve', 'provenance': [{'wikipedia_id': '164391', 'title': 'Monetary policy of the United States', 'start_paragraph_id': 1, 'start_character': 186, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '164391', 'title': 'Monetary policy of the United States', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 332, 'bleu_score': 0.962600167205617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4177855096599837075}, 'section': 'Section::::Abstract.'}]}]