Question: who sang theme song for life of brian
[{'answer': 'Sonia Jones', 'provenance': [{'wikipedia_id': '21702456', 'title': 'Brian Song', 'start_paragraph_id': 2, 'start_character': 184, 'end_paragraph_id': 2, 'end_character': 195, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21702456', 'title': 'Brian Song', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 579, 'bleu_score': 0.6737645610209501, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4653206797959180385}, 'section': 'Section::::Abstract.'}]}]