Question: when did reese's peanut butter cups first come out
[{'answer': '1928'}, {'provenance': [{'wikipedia_id': '1486422', 'title': "Reese's Peanut Butter Cups", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 355, 'bleu_score': 0.638604949534437, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12103415794117688892}, 'section': 'Section::::Abstract.'}]}]