Question: who uses the metric system in the us
[{'answer': 'science', 'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 133, 'end_paragraph_id': 3, 'end_character': 140, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'medicine', 'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 142, 'end_paragraph_id': 3, 'end_character': 150, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the military', 'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 152, 'end_paragraph_id': 3, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'automobile production and repair', 'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 166, 'end_paragraph_id': 3, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'international affairs', 'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 204, 'end_paragraph_id': 3, 'end_character': 225, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '636702', 'title': 'Metrication in the United States', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 337, 'bleu_score': 0.6614283425303531, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8699600248968648760}, 'section': 'Section::::Abstract.'}]}]