Question: who has the final word on all us laws
[{'answer': 'States', 'provenance': [{'wikipedia_id': '13872629', 'title': 'Nullification (U.S. Constitution)', 'start_paragraph_id': 1, 'start_character': 25, 'end_paragraph_id': 1, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13872629', 'title': 'Nullification (U.S. Constitution)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 916, 'bleu_score': 0.9867102250666441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8023062266091996431}, 'section': 'Section::::Abstract.'}]}]