Question: who sang i'm just a ghost in this house
[{'answer': 'Shenandoah', 'provenance': [{'wikipedia_id': '6355112', 'title': 'Ghost in This House', 'start_paragraph_id': 1, 'start_character': 103, 'end_paragraph_id': 1, 'end_character': 113, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6355112', 'title': 'Ghost in This House', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 297, 'bleu_score': 0.9603762111511761, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10134560692567427503}, 'section': 'Section::::Abstract.'}]}]