Question: when did wireless charging come out for samsung
[{'answer': 'March 15 , 2013'}, {'provenance': [{'wikipedia_id': '6349042', 'title': 'Inductive charging', 'start_paragraph_id': 52, 'start_character': 0, 'end_paragraph_id': 52, 'end_character': 115, 'bleu_score': 0.8781879837907131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16458106967667149481}, 'section': 'Section::::Examples.\n'}]}]