Question: where does the mississippi river empty into the ocean
[{'answer': 'the Gulf of Mexico', 'provenance': [{'wikipedia_id': '19579', 'title': 'Mississippi River', 'start_paragraph_id': 1, 'start_character': 299, 'end_paragraph_id': 1, 'end_character': 317, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19579', 'title': 'Mississippi River', 'start_paragraph_id': 32, 'start_character': 0, 'end_paragraph_id': 32, 'end_character': 493, 'bleu_score': 0.8334935842230191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5806944522326030835}, 'section': 'Section::::Watershed.\n'}]}]