Question: when did the galaxy tab a 8.0 come out
[{'answer': '1 May 2015', 'provenance': [{'wikipedia_id': '48977458', 'title': 'Samsung Galaxy Tab A 8.0', 'start_paragraph_id': 1, 'start_character': 248, 'end_paragraph_id': 1, 'end_character': 258, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '48977458', 'title': 'Samsung Galaxy Tab A 8.0', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 311, 'bleu_score': 0.86614073660875, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2665555881144898501}, 'section': 'Section::::Abstract.'}]}]