Question: who came up with the idea for sgt. pepper
[{'answer': 'Paul McCartney', 'provenance': [{'wikipedia_id': '65450', 'title': "Sgt. Pepper's Lonely Hearts Club Band", 'start_paragraph_id': 2, 'start_character': 140, 'end_paragraph_id': 2, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '65450', 'title': "Sgt. Pepper's Lonely Hearts Club Band", 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 535, 'bleu_score': 0.685998158893486, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12615321580072580179}, 'section': 'Section::::Abstract.'}]}]