Question: when did spain give louisiana back to france
[{'answer': '1802', 'provenance': [{'wikipedia_id': '9853578', 'title': 'Louisiana (New Spain)', 'start_paragraph_id': 1, 'start_character': 468, 'end_paragraph_id': 1, 'end_character': 472, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9853578', 'title': 'Louisiana (New Spain)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 588, 'bleu_score': 0.8285189679825851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5532123871765940699}, 'section': 'Section::::Abstract.'}]}]