Question: who wrote the song all along the watch tower
[{'answer': 'Bob Dylan', 'provenance': [{'wikipedia_id': '413556', 'title': 'All Along the Watchtower', 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 97, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '413556', 'title': 'All Along the Watchtower', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 394, 'bleu_score': 0.970795021215021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6220998800059510061}, 'section': 'Section::::Abstract.'}]}]