Question: when does starbucks pumpkin spice latte come out
[{'answer': 'the first of September'}, {'provenance': [{'wikipedia_id': '44123393', 'title': 'Pumpkin Spice Latte', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 389, 'bleu_score': 0.5889485152400601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11925951334056663904}, 'section': 'Section::::Abstract.'}]}]