Question: who sings the song spirit in the sky
[{'answer': 'Norman Greenbaum', 'provenance': [{'wikipedia_id': '1715836', 'title': 'Spirit in the Sky', 'start_paragraph_id': 1, 'start_character': 65, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1715836', 'title': 'Spirit in the Sky', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 790, 'bleu_score': 0.8657794342839231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9725829372495530327}, 'section': 'Section::::Abstract.'}]}]