Question: when did apple watch series 0 come out
[{'answer': 'April 24 , 2015', 'provenance': [{'wikipedia_id': '43239050', 'title': 'Apple Watch', 'start_paragraph_id': 3, 'start_character': 32, 'end_paragraph_id': 3, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]