Question: who has the power to regulate foreign trade
[{'answer': 'the United States Congress', 'provenance': [{'wikipedia_id': '277462', 'title': 'Commerce Clause', 'start_paragraph_id': 1, 'start_character': 118, 'end_paragraph_id': 1, 'end_character': 144, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '277462', 'title': 'Commerce Clause', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 585, 'bleu_score': 0.9023319493267961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5786360006688271147}, 'section': 'Section::::Abstract.'}]}]