Question: who wrote hard times come again no more
[{'answer': 'Stephen Foster', 'provenance': [{'wikipedia_id': '6121401', 'title': 'Hard Times Come Again No More', 'start_paragraph_id': 1, 'start_character': 96, 'end_paragraph_id': 1, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]