Question: when did the galaxy core prime come out
[{'answer': '2 June 2015', 'provenance': [{'wikipedia_id': '46834722', 'title': 'Samsung Galaxy Core Prime', 'start_paragraph_id': 1, 'start_character': 402, 'end_paragraph_id': 1, 'end_character': 413, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46834722', 'title': 'Samsung Galaxy Core Prime', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 413, 'bleu_score': 0.724845846907744, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4942301016675084896}, 'section': 'Section::::Abstract.'}]}]