Question: who owns all the rights to the beatles music
[{'answer': 'Sony / ATV Music Publishing', 'provenance': [{'wikipedia_id': '2040018', 'title': 'Sony/ATV Music Publishing', 'start_paragraph_id': 49, 'start_character': 61, 'end_paragraph_id': 49, 'end_character': 90, 'bleu_score': 1.0, 'section': 'Section::::Valuation.:Previous estimates.\n'}]}]