Question: who has the power to to establish an uniform rule of naturalization
[{'answer': 'Congress', 'provenance': [{'wikipedia_id': '993845', 'title': 'United States nationality law', 'start_paragraph_id': 1, 'start_character': 311, 'end_paragraph_id': 1, 'end_character': 319, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '993845', 'title': 'United States nationality law', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 687, 'bleu_score': 0.901242684352867, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5482909174670886068}, 'section': 'Section::::Abstract.'}]}]