Question: when did the song hey jude by the beatles come out
[{'answer': '26 August 1968', 'provenance': [{'wikipedia_id': '155452', 'title': 'Hey Jude', 'start_paragraph_id': 30, 'start_character': 27, 'end_paragraph_id': 30, 'end_character': 41, 'bleu_score': 1.0, 'section': 'Section::::Release.\n'}]}]