Question: who sang get back to where you once belonged
[{'answer': 'Paul McCartney', 'provenance': [{'wikipedia_id': '140633', 'title': 'Get Back', 'start_paragraph_id': 1, 'start_character': 82, 'end_paragraph_id': 1, 'end_character': 96, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '140633', 'title': 'Get Back', 'start_paragraph_id': 35, 'start_character': 0, 'end_paragraph_id': 35, 'end_character': 52, 'bleu_score': 0.6803749333171201, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10672754004721402601}, 'section': 'Section::::Personnel.\n'}]}]