Question: when did the first touchscreen iphone come out
[{'answer': 'January 9 , 2007', 'provenance': [{'wikipedia_id': '27761763', 'title': 'IPhone (1st generation)', 'start_paragraph_id': 7, 'start_character': 52, 'end_paragraph_id': 7, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '27761763', 'title': 'IPhone (1st generation)', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 512, 'bleu_score': 0.9768747032089851, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11671249390258240098}, 'section': 'Section::::History.\n'}]}]