Question: who sings do you want to know a secret
[{'answer': 'the Beatles', 'provenance': [{'wikipedia_id': '2253889', 'title': 'Do You Want to Know a Secret', 'start_paragraph_id': 1, 'start_character': 63, 'end_paragraph_id': 1, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]