Question: who wrote the song blowin in the wind
[{'answer': 'Bob Dylan', 'provenance': [{'wikipedia_id': '572317', 'title': "Blowin' in the Wind", 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 52, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '572317', 'title': "Blowin' in the Wind", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 471, 'bleu_score': 0.977139080690077, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7588362671880338437}, 'section': 'Section::::Abstract.'}]}]