Question: when does season 2 of luke cage premiere
[{'answer': 'June 22 , 2018', 'provenance': [{'wikipedia_id': '52476225', 'title': 'Luke Cage (season 2)', 'start_paragraph_id': 74, 'start_character': 49, 'end_paragraph_id': 74, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Release.\n'}]}]