Question: is the usa common law or civil law
[{'answer': 'Common law', 'provenance': [{'wikipedia_id': '154708', 'title': 'List of national legal systems', 'start_paragraph_id': 17, 'start_character': 11, 'end_paragraph_id': 17, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Civil law.\n'}]}, {'provenance': [{'wikipedia_id': '154708', 'title': 'List of national legal systems', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 514, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6765855496710125272}, 'section': 'Section::::Common law.\n'}]}]