Question: when did the first android smartphone come out
[{'answer': 'September 2008', 'provenance': [{'wikipedia_id': '12610483', 'title': 'Android (operating system)', 'start_paragraph_id': 2, 'start_character': 149, 'end_paragraph_id': 2, 'end_character': 163, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12610483', 'title': 'Android (operating system)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 460, 'bleu_score': 0.583112267696127, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15169724392954090723}, 'section': 'Section::::Abstract.'}]}]