Question: when was sgt pepper released in the uk
[{'answer': '26 May 1967', 'provenance': [{'wikipedia_id': '65450', 'title': "Sgt. Pepper's Lonely Hearts Club Band", 'start_paragraph_id': 1, 'start_character': 115, 'end_paragraph_id': 1, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '65450', 'title': "Sgt. Pepper's Lonely Hearts Club Band", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 641, 'bleu_score': 0.7451803780338221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9790239564110331838}, 'section': 'Section::::Abstract.'}]}]