Question: when did clash of clans come out for android
[{'answer': 'October 7 , 2013', 'provenance': [{'wikipedia_id': '39479157', 'title': 'Clash of Clans', 'start_paragraph_id': 23, 'start_character': 200, 'end_paragraph_id': 23, 'end_character': 216, 'bleu_score': 1.0, 'section': 'Section::::Development and release.\n'}]}, {'provenance': [{'wikipedia_id': '39479157', 'title': 'Clash of Clans', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 225, 'bleu_score': 0.9493253852526031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12107409807506955036}, 'section': 'Section::::Abstract.'}]}]