Question: when did m and s start selling food
[{'answer': '2000', 'provenance': [{'wikipedia_id': '154557', 'title': 'Marks & Spencer', 'start_paragraph_id': 151, 'start_character': 126, 'end_paragraph_id': 151, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Store formats.:Foodhall (in-store).\n'}]}, {'provenance': [{'wikipedia_id': '154557', 'title': 'Marks & Spencer', 'start_paragraph_id': 151, 'start_character': 0, 'end_paragraph_id': 151, 'end_character': 489, 'bleu_score': 0.9353868346438581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8312351318149346699}, 'section': 'Section::::Store formats.:Foodhall (in-store).\n'}]}]