Question: when did the glock 17 gen 4 come out
[{'answer': '2010', 'provenance': [{'wikipedia_id': '14664934', 'title': 'Glock', 'start_paragraph_id': 22, 'start_character': 7, 'end_paragraph_id': 22, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::History.:Product evolution.:Fourth-generation models.\n'}]}, {'provenance': [{'wikipedia_id': '14664934', 'title': 'Glock', 'start_paragraph_id': 22, 'start_character': 0, 'end_paragraph_id': 22, 'end_character': 559, 'bleu_score': 0.907434311953866, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6380007702755054451}, 'section': 'Section::::History.:Product evolution.:Fourth-generation models.\n'}]}]