Question: samsung galaxy s7 when did it come out
[{'answer': '11 March 2016', 'provenance': [{'wikipedia_id': '49439375', 'title': 'Samsung Galaxy S7', 'start_paragraph_id': 1, 'start_character': 437, 'end_paragraph_id': 1, 'end_character': 450, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '49439375', 'title': 'Samsung Galaxy S7', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 552, 'bleu_score': 0.9497986903841331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13664329173323008728}, 'section': 'Section::::Abstract.'}]}]