Question: what type of tariff is prohibited by the u.s. constitution
[{'answer': 'interstate tariffs', 'provenance': [{'wikipedia_id': '3873491', 'title': 'Tariff in United States history', 'start_paragraph_id': 19, 'start_character': 290, 'end_paragraph_id': 19, 'end_character': 308, 'bleu_score': 1.0, 'section': 'Section::::Colonial Era to 1789.\n'}]}, {'provenance': [{'wikipedia_id': '3873491', 'title': 'Tariff in United States history', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 365, 'bleu_score': 0.905341140211783, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2387309233411847899}, 'section': 'Section::::Colonial Era to 1789.\n'}]}]