Question: who wrote a short walk in the hindu kush
[{'answer': 'Eric Newby', 'provenance': [{'wikipedia_id': '26003163', 'title': 'A Short Walk in the Hindu Kush', 'start_paragraph_id': 1, 'start_character': 75, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26003163', 'title': 'A Short Walk in the Hindu Kush', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 378, 'bleu_score': 0.9684940092844061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 581261134581069853}, 'section': 'Section::::Abstract.'}]}]