Question: where did the united states and france sign the treaty to sell the louisiana territory
[{'answer': 'Paris', 'provenance': [{'wikipedia_id': '17628', 'title': 'Louisiana Purchase', 'start_paragraph_id': 8, 'start_character': 54, 'end_paragraph_id': 8, 'end_character': 59, 'bleu_score': 1.0, 'section': 'Section::::Background.\n'}]}, {'provenance': [{'wikipedia_id': '17628', 'title': 'Louisiana Purchase', 'start_paragraph_id': 40, 'start_character': 0, 'end_paragraph_id': 40, 'end_character': 430, 'bleu_score': 0.786602796878566, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15325743413445198036}, 'section': 'Section::::Treaty signing.\n'}]}]