Question: when did marks and spencer's first open
[{'answer': '1884', 'provenance': [{'wikipedia_id': '154557', 'title': 'Marks & Spencer', 'start_paragraph_id': 2, 'start_character': 19, 'end_paragraph_id': 2, 'end_character': 23, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '154557', 'title': 'Marks & Spencer', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 247, 'bleu_score': 0.739014309712093, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12378508611107852485}, 'section': 'Section::::Abstract.'}]}]