Question: where does the story a long walk to water take place
[{'answer': 'South Sudan', 'provenance': [{'wikipedia_id': '33505518', 'title': 'A Long Walk to Water', 'start_paragraph_id': 1, 'start_character': 337, 'end_paragraph_id': 1, 'end_character': 348, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '33505518', 'title': 'A Long Walk to Water', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 348, 'bleu_score': 0.698084145386976, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15863711407933929702}, 'section': 'Section::::Abstract.'}]}]