Question: when did starbucks partner with barnes and noble
[{'answer': '1993', 'provenance': [{'wikipedia_id': '191875', 'title': 'Barnes & Noble', 'start_paragraph_id': 40, 'start_character': 3, 'end_paragraph_id': 40, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Food service.\n'}]}]