Question: when did the glock gen 5 come out
[{'answer': 'August 2017', 'provenance': [{'wikipedia_id': '14664934', 'title': 'Glock', 'start_paragraph_id': 33, 'start_character': 3, 'end_paragraph_id': 33, 'end_character': 14, 'bleu_score': 1.0, 'section': 'Section::::History.:Product evolution.:Fifth-generation models.\n'}]}, {'provenance': [{'wikipedia_id': '14664934', 'title': 'Glock', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 954, 'bleu_score': 0.6431718728445921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4746442700200570460}, 'section': 'Section::::History.:Product evolution.:Fifth-generation models.\n'}]}]