Question: what year did the first ipod touch come out
[{'answer': '2007', 'provenance': [{'wikipedia_id': '13111239', 'title': 'IPod Touch', 'start_paragraph_id': 1, 'start_character': 512, 'end_paragraph_id': 1, 'end_character': 516, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]