Question: who wrote the treasure of the sierra madre
[{'answer': 'B. Traven', 'provenance': [{'wikipedia_id': '60171', 'title': 'The Treasure of the Sierra Madre', 'start_paragraph_id': 1, 'start_character': 134, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'bilingual German author B. Traven', 'provenance': [{'wikipedia_id': '60171', 'title': 'The Treasure of the Sierra Madre', 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'bilingual German author B. Traven , whose identity remains unknown'}, {'provenance': [{'wikipedia_id': '60171', 'title': 'The Treasure of the Sierra Madre', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 356, 'bleu_score': 0.849563834949928, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9725251738220110679}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '60171', 'title': 'The Treasure of the Sierra Madre', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The Treasure of the Sierra Madre (originally titled Der Schatz der Sierra Madre) is a 1927 adventure novel by bilingual German author B. Traven, whose identity remains unknown. In the book, two destitute American men in Mexico of the 1920s join an older American prospector in a search for gold. John Huston adapted the book as a 1948 film of the same name.', 'The Treasure of the Sierra Madre (originally titled Der Schatz der Sierra Madre) is a 1927 adventure novel by bilingual German author B. Traven, whose identity remains unknown.']}}]}]