Question: when does wwe 2k18 come out on ps4
[{'answer': 'October 17 , 2017', 'provenance': [{'wikipedia_id': '54222401', 'title': 'WWE 2K18', 'start_paragraph_id': 1, 'start_character': 246, 'end_paragraph_id': 1, 'end_character': 266, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]